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Monday, April 13, 2026

Nail

Nail (pronounced neyl)

(1) A slender, typically rod-shaped rigid piece of metal, usually in many lengths and thicknesses, having (usually) one end pointed and the other (usually) enlarged or flattened, and used for hammering into or through wood, concrete or other materials; in the building trades the most common use is to fasten or join together separate pieces (of timber etc).

(2) In anatomy, a thin, horny plate, consisting of modified epidermis, growing on the upper side of the end of a finger or toe; the toughened protective protein-keratin (known as alpha-keratin, also found in hair) at the end of an animal digit, such as fingernail.

(3) In zoology, the basal thickened portion of the anterior wings of certain hemiptera; the basal thickened portion of the anterior wings of certain hemiptera; the terminal horny plate on the beak of ducks, and other allied birds; the claw of a mammal, bird, or reptile.

(4) Historically, in England, a round pedestal on which merchants once carried out their business.

(5) A measure for a length for cloth, equal to 2¼ inches (57 mm) or 1⁄20 of an ell; 1⁄16 of a yard (archaic); it’s assumed the origin lies in the use to mark that length on the end of a yardstick.

(6) To fasten with a nail or nails; to hemmer in a nail.

(7) To enclose or confine (something) by nailing (often followed by up or down).

(8) To make fast or keep firmly in one place or position (also used figuratively).

(8) Perfectly to accomplish something (usually as “nailed it”).

(9) In vulgar slang, of a male, to engage in sexual intercourse with (as “I nailed her” or (according to Urban Dictionary: “I nailed the bitch”).

(10) In law enforcement, to catch a suspect or find them in possession of contraband or engaged in some unlawful conduct (usually as “nailed them”).

(11) In Christianity, as “the nails”, the relics used in the crucifixion, nailing Christ to the cross at Golgotha.

(12) As a the nail (unit), an archaic multiplier equal to one sixteenth of a base unit

(13) In drug slang, a hypodermic needle, used for injecting drugs.

(14) To detect and expose (a lie, scandal, etc)

(15) In slang, to hit someone.

(16) In slang, intently to focus on someone or something.

(17) To stud with or as if with nails.

Pre 900: From the Middle English noun nail & nayl, from the Old English nægl and cognate with the Old Frisian neil, the Old Saxon & Old High German nagal, the Dutch nagel, the German Nagel, the Old Norse nagl (fingernail), all of which were from the unattested Germanic naglaz.  As a derivative, it was akin to the Lithuanian nãgas & nagà (hoof), the Old Prussian nage (foot), the Old Church Slavonic noga (leg, foot), (the Serbo-Croatian nòga, the Czech noha, the Polish noga and the Russian nogá, all of which were probably originally a jocular reference to the foot as “a hoof”), the Old Church Slavonic nogŭtĭ, the Tocharian A maku & Tocharian B mekwa (fingernail, claw), all from the unattested North European Indo-European ənogwh-.  It was further akin to the Old Irish ingen, the Welsh ewin and the Breton ivin, from the unattested Celtic gwhīnā, the Latin unguis (fingernail, claw), from the unattested Italo-Celtic əngwhi-;the Greek ónyx (stem onych-), the Sanskrit ághri- (foot), from the unattested ághli-; the Armenian ełungn from the unattested onogwh-;the Middle English verbs naile, nail & nayle, the Old English næglian and cognate with the Old Saxon neglian, the Old High German negilen, the Old Norse negla, from the unattested Germanic nagl-janan (the Gothic was ganagljan).  The ultimate source was the primitive Indo-European h₃nog- (nail) and the use to describe the metal fastener was from the Middle English naylen, from the Old English næġlan & nægl (fingernail (handnægl)) & negel (tapering metal pin), from the Proto-Germanic naglaz (source also of Old Norse nagl (fingernail) & nagli (metal nail).  Nail is a noun & verb, nailernailless & naillike are adjectives, renail is a verbs, nailing is a noun & vern and nailed is a verb & adjective; the noun plural is nails.

Nail is modified or used as a modifier in literally dozens of examples including finger-nail, toe-nail, nail-brush, nail-file, rusty-nail, garden-nail, nail-fungus, nail-gun & frost-nail.  In idiomatic use, a “nail in one's coffin” is a experience or event that tends to shorten life or hasten the end of something (applied retrospectively (ie post-mortem) it’s usually in the form “final nail in the coffin”.  To be “hard as nails” is either to be “in a robust physical state” or “lacking in human feelings or without sentiment”. To “nail one's colors to the mast” is to declare one’s position on something.  Something described as “better than a poke in the eye with a rusty nail” is a thing, which while not ideal, is not wholly undesirable or without charm.  In financial matters (of payments), to be “on the nail” is to “pay at once”, often in the form “pay on the nail”.  To “nail something down” is to finalize it. To have “nailed it” is “to perfectly have accomplished something” while “nailed her” indicates “having enjoyed sexual intercourse with her”.  The “right” in the phrase “hit the nail right on the head” is a more recent addition, all known instances of use prior to 1700 being “hit the nail on the head” and the elegant original is much preferred.  It’s used to mean “correctly identify something or exactly to arrive at the correct answer”.  Interestingly, the Oxford English Dictionary (OED) notes there is no documentary evidence that the phrase comes from “nail” in the sense of the ting hit by a hammer.

Double-headed nails.

Double-headed nails are used for temporary structures like fencing.  When the shaft is hammered in to the point where the surface of the lower head is flat against the surface of that into which it's being hammered, it leaves the upper head standing proud with just enough of the shaft exposed to allow a claw-hammer to be used to extract nail.  There is a story that as part of an environmental protest against the building or demolition of some structure (the tales vary), activists early one morning went to the temporary fencing around the contested site and hammered in all the double-headed nails.  This is believed to be an urban myth.

The sense of “fingernail” appears to be the original which makes sense give there were fingernails before there were spikes (of metal or any other material) used to build stuff.  The verb nail was from the Old English næglian (to fix or fasten (something) onto (something else) with nails), from the Proto-Germanic ganaglijan (the source also of the Old Saxon neglian, the Old Norse negla, the Old High German negilen, the German nageln and the Gothic ganagljan (to nail), all developed from the root of the nouns.  The colloquial meaning “secure, succeed in catching or getting hold of (someone or something)” was in use by at least the 1760; hence (hence the law enforcement slang meaning “to effect an arrest”, noted since the 1930s.  The meaning “to succeed in hitting” dates from 1886 while the phrase “to nail down” (to fix in place with nails) was first recorded in the 1660s.

Colors: Lindsay Lohan with nails unadorned and painted.

As a noun, “nail-biter” (worrisome or suspenseful event), perhaps surprisingly, seems not to have been in common use until 1999 an it’s applied to things from life-threatening situations to watching close sporting contests.  The idea of nail-biting as a sign of anxiety has been in various forms of literature since the 1570s, the noun nail-biting noted since 1805 and as a noun it was since the mid-nineteenth century applied to those individuals who “habitually or compulsively bit their fingernails” although this seems to have been purely literal rather than something figurative of a mental state.  Now, a “nail-biter” is one who is “habitually worried or apprehensive” and they’re often said to be “chewing the ends of their fingernails” and in political use, a “nail biter” is a criticism somewhat less cutting than “bed-wetter”.  The condition of compulsive nail-biting is the noun onychophagia, the construct being onycho- (a creation of the international scientific vocabulary), reflecting a New Latin combining form, from the Ancient Greek νυξ (ónux) (claw, nail, hoof, talon) + -phagia (eating, biting or swallowing), from the Ancient Greek -φαγία (-phagía).  A related form was -φαγος (-phagos) (eater), the suffix corresponding to φαγεν (phageîn) (to eat), the infinitive of φαγον (éphagon) (I eat), which serves as aorist (essentially a compensator for sense-shifts) (for the defective verb σθίω (esthíō) (I eat).  Bitter-tasting nail-polish is available for those who wish to cure themselves.  Nail-polish as a product dates from the 1880s and was originally literally a clear substance designed to give the finger or toe-nails a varnish like finish upon being buffed.  By 1884, it was being sold as “liquid nail varnish” including shads of black, pink and red although surviving depictions in art suggests men and women in various cultures have for thousands of years been coloring their nails.  Nail-files (small, flat, single-cut file for trimming the fingernails) seem first to have been sold in 1819 and nail-clippers (hand-tool used to trim the fingernails and toenails) in 1890.

Francis (1936-2025; pope 2013-2025) at the funeral of Cardinal George Pell (1941-2023), St Peter’s Basilica, the Vatican, January 2023.

The expression "nail down the lid" is a reference to the lid of a coffin (casket), the implication being one wants to make doubly certain anyone within can't possible "return from the dead".  The noun doornail (also door-nail) (large-headed nail used for studding batten doors for strength or ornament) emerged in the late fourteenth century and was often used of many large, thick nails with a large head, not necessarily those used only in doors.  The figurative expression “dead as a doornail” seems to be as old as the piece of hardware and use soon extended to “dumb as a doornail” and “deaf as a doornail).  The noun hangnail (also hang-nail) is a awful as it sounds and describes a “sore strip of partially detached flesh at the side of a nail of the finger or toe” and appears in seventeenth century texts although few etymologists appear to doubt it’s considerably older and probably a folk etymology and sense alteration of the Middle English agnail & angnail (corn on the foot), from the Old English agnail & angnail.  The origin is likely to have been literally the “painful spike” in the flesh when suffering the condition.  The first element was the Proto-Germanic ang- (compressed, hard, painful), from the primitive Indo-European root angh- (tight, painfully constricted, painful); the second the Old English nægl (spike), one of the influences on “nail”.  The noun hobnail was a “short, thick nail with a large head” which dates from the 1590s, the first element probably identical with hob (rounded peg or pin used as a mark or target in games (noted since the 1580s)) of unknown origin.  Because hobnails were hammered into the leather soles of heavy boots and shoes, “hobnail” came in the seventeenth century to be used of “a rustic person” though it was though less offensive than forms like “yokel”.

Nails and pins

Mug shot “pin” from TeePublic featuring Lindsay Lohan (b 1986, left), Donald Trump (b 1946; POTUS 2017-2021 and since 2025) and Paris Hilton (b 1981, right).  In this context, although the product really is “the badge”, the name was gained from the built-in pin supplied to secure the object to clothing.

As designs, a nail and a pin are similar, obviously differing only in scale but the function of each is different.  A nail’s primary purpose is to function as a structural fastener joining materials (most typically two or more pieces of wood) although there are specialized nails driven into substrate by impact (variously with hammers or nail guns (sometimes called “pin-nailers”, some of which are built to fire “panel pins” (very slender nails) or small “headless nails”).  A nail relies on friction and compression in the surrounding material for its holding strength.  Pins look like scaled-down nails but mostly are used for alignment, retention or pivoting, rather than structural load-bearing.  Because of their more delicate construction, pins often are inserted through specific-purpose, pre-existing holes and in many cases are intended to be temporary and are thus removable.  Visually, both nails and pins have heads (round, flat, clipped etc) and a tapered shank with a tip pointed for pointed tip for penetration (“snub-nosed” nails do exist but are rare) and both are designed slightly to deform the surrounding material when driven.  The most obvious difference is that a pin’s head is very small and some are spherical and made from plastic; they’re designed only to be pushed with finger-pressure rather than being hit with a hammer.  Although the term “pin” is used for some specialized devices used in building and engineering (dowel pin, pivot pin, gudgeon pin (also as wrist pin), roll pin, cotter pin etc), the word is most associated with the tailor’s pin (used mostly in textiles and usually clipped to “pin”).  In jewelry design and textiles there are also variants including the “lapel pin” and the fashion industry’s device of last resort, the “safety pin”.

Pinhead in publicity shot for Hellraiser III: Hell on Earth (1992).

Clive Barker's (b 1952) supernatural horror movie Hellraiser (1987) was based on his novella The Hellbound Heart (1986) and was a surprise hit, making it a franchise which has thus far spawned nine sequels, the most recent released in 2022.  The plot involved a mysterious puzzle box that, when opened, summoned the Cenobites, a group of extra-dimensional, sadomasochistic beings unable to differentiate between pain and pleasure.  It was a good premise for a horror movie but the character who really captured the audience's imagination was the unnamed figure viewers dubbed “Pinhead”.  Although Pinhead appeared in the original film for fewer than ten minutes, the character became the franchise’s focal point and has since dominated the publicity material for subsequent releases.  The popularity of Hellraiser has been maintained and it’s hoped that for the next release the producers will offer the part to Peter Dutton (b 1970; leader of the Liberal Party of Australia 2022-2025).

Peter Dutton captured by a photographer during a happy moment (left), Pinhead with the box able to summon the Cenobites (centre) and and artist's depiction of Mr Dutton in “Pinhead mode” (digitally altered image, right).

No longer burdened with tiresome parliamentary duties since losing his seat in the 2025 Australian general election, Mr Dutton has time for a third career and he should be good at playing an unsmiling character who speaks in a relentless monotone; really, all he need do is act naturally.  It’s suspected also he’ll be good at learning a script given the decades he spent parroting “talking points” and TWS (three word slogans).  While it’s an urban myth Mr Dutton wasn’t offered the part of Lord Voldemort in the Harry Potter movie franchise because he was deemed “too scary”, as Pinhead he’d be “just scary enough”.  While the LNP (Liberal National Party) state government in Queensland recently has appointed Mr Dutton to the board of the QIC (Queensland Investment Corporation, the investment manager of the state’s Aus$135 billion in assets), it’s understood his duties in the Aus$130,000 per annum role will be neither onerous or time-consuming so there’ll be ample opportunity for film-shoots.  Although when in opposition the LNP had decried the ALP (Australian Labor Party) government’s frequent appointment of ALP figures to lucrative sinecures, once in office the LNP continued the “jobs for the boys” tradition.  In the modern era, the two most striking characteristics of right-wing fanatics is (1) a fondness for sitting safely in a bunker while advocating for (and sometimes sending) other people's children to go a fight a war somewhere and (2) after a career spent extolling the virtues of “private enterprise” and criticizing “government waste”, being anxious to get back on the public payroll as soon as their political careers end.  Reassuringly for taxpayers who may have been worried Mr Dutton would not be able to continue to enjoy the lifestyle to which their taxes made him accustomed (“entitled” as he might have put it), it’s believed his director’s fees from QIC will not affect his parliamentary pension (understood to be between Aus$260,000-Aus$280,000 per annum).

The Buick Nailhead

In the 1930s, the straight-8 became a favorite for manufacturers of luxury cars, attracted by its ease of manufacture (components and assembly-line tooling able to be shared with those used to produce a straight-6), the mechanical smoothness inherent in the layout and the ease of maintenance afforded by the long, narrow configuration, ancillary components readily accessible.  However, the limitations were the relatively slow engine speeds imposed by the need to restrict the “crankshaft flex” and the height of the units, a product of the long strokes used to gain the required displacement.  By the 1950s, it was clear the future lay in big-bore, overhead valve V8s although the Mercedes-Benz engineers, unable to forget the glory days of the 1930s when the straight-eight W125s built for the Grand Prix circuits generated power and speed Formula One wouldn’t see until the 1980s, noted the relatively small 2.5 litre (153 cubic inch) displacement limit for 1954 and conjured up a final fling for the layout.  Used in both Formula One as the W196R and in sports car racing as the W196S (better remembered as the 300 SLR) the new 2.5 & 3.0 litre (183 cubic inch) straight-8s, unlike their pre-war predecessors, solved the issue of crankshaft flex (the W196's redline was 9500 compared with the W125's 5800) by locating the power take-off at the centre, adding mechanical fuel-injection and a desmodromic valve train to make the things an exotic cocktail of ancient & modern (on smooth racetracks and in the hands of skilled drivers, the swing axles at the back not the liability they might sound).  Dominant during 1954-1955 in both Formula One & the World Sports Car Championship, they were the last of the straight-8s in top-line competition.

Schematic of Buick “Nailhead” V8, 1953-1966.

Across the Atlantic, the US manufacturers also abandoned their straight-8s.  Buick introduced their overhead valve (OHV) V8 in 1953 but, being much wider than before, the new engine had to be slimmed somewhere to fit between the existing inner-fenders (it would not be until later the platform was widened).  To achieve this, the engineers narrowed the cylinder heads, compelling both a conical (the so-called “pent-roof”) combustion chamber and an arrangement in which the sixteen valves pointed directly upwards on the intake side, something which not only demanded an unusual pushrod & rocker mechanism but also limited the size of the valves.  So, the valves had to be tall and narrow and, with some resemblance to nails, they picked up the nickname “nail valves”, morphing eventually to “nailhead” as a description of the whole engine.  The valve placement and angle certainly benefited the intake side but the geometry compromised the flow of exhaust gases which were compelled by their anyway small ports to make a turn of almost 180o on their way to the tailpipe.  As an indication of the heat-soak generated by that 180turn, the surrounding water passages were very wide. 

It wasn't the last time the head design of a Detroit V8 would be dictated by considerations of width.  When Chrysler in 1964 introduced the 273 cubic inch (4.5 litre) V8 as the first of its LA-Series (that would begat the later 318 (5.2), 340 (5.5) & 360 (5.9) as well as the V10 made famous in the Dodge Viper), the most obvious visual difference from the earlier A-Series V8s was the noticeably smaller cylinder heads.  The A engines used as skew-type valve arrangement in which the exhaust valve was parallel to the bore with the intake valve tipped toward the intake manifold (the classic polyspherical chamber).  For the LA, Chrysler rendered all the valves tipped to the intake manifold and in-line (as viewed from the front), the industry’s standard approach to a wedge combustion chamber.  The reason for the change was that the decision had been taken to offer the compact Valiant with a V8 but it was a car which had been designed to accommodate only a straight-six and the wide-shouldered polyspheric head A-Series V8s simply wouldn’t fit.  So, essentially, wedge-heads were bolted atop the old A-Series block but the “L” in LA stood for light and the engineers wanted something genuinely lighter for the compact (in contemporary US terms) Valiant.  Accordingly, in addition to the reduced size of the heads and intake manifold, a new casting process was developed for the block (the biggest, heaviest part of an engine) which made possible thinner walls.  "Light" is however a relative term and the LA series was notably larger and heavier than Ford's "Windsor" V8 (1961-2000) which was the exemplar of the "thin-wall" technique.  This was confirmed in 1967 when, after taking control of Rootes Group, Chrysler had intended to continue production of the Sunbeam Tiger, by then powered by the Ford Windsor 289 (4.7 litre) but with Chrysler’s 273 LA V8 substituted.  Unfortunately, while 4.7 Ford litres filled it to the brim, 4.4 Chrysler litres overflowed; the Windsor truly was compact.  Allowing it to remain in production until the stock of already purchased Ford engines had been exhausted, Chrysler instead changed the advertising from emphasizing the “…mighty Ford V8 power plant” to the vaguely ambiguous…an American V-8 power train”.

322 cubic inch Nailhead in 1953 Buick Skylark convertible (left) and 425 cubic inch Nailhead in 1966 Buick Riviera GS (with dual-quad MZ package, right).  Note the “Wildcat 465” label on the air cleaner, a reference to the claimed torque rating, something most unusual, most manufacturers using the space to advertise horsepower or cubic inch displacement (CID).

The nailhead wasn’t ideal for producing top-end power but the design did generate prodigious low-end torque, something much appreciated by Buick's previous generation of buyers who much had relished the low-speed responsiveness of the famously smooth straight-8.  However, like everybody else, Buick hadn’t anticipated that as the 1950s unfolded, the industry would engage in a “power race”, something to which the free-breathing Cadillac V8s and Chrysler’s Hemis were well-suited.  For that, the somewhat strangulated Buick Nailhead was not at all suited and to gain power the engineers were compelled to add high-lift, long-duration camshafts which enabled the then magic 300 HP (horsepower) number to be achieved but at the expense of smoothness; tales of Buick buyers (long accustomed to straight-8s that ran so smoothly at idle it could be hard to tell if the things were running) returning to the dealer to fix the “rumpity-rump” became legion.  Still, the Nailhead was robust, relatively light and offered what was then a generous displacement and the ever inventive hot-rod community soon worked out the path to power was to use forced induction and invert the valve use, the supercharger blowing the fuel-air mix into the combustion chambers through the exhaust ports while the exhaust gases were evacuated through the larger intake ports.  Thus, for a while, the Nailhead enjoyed a role as a niche player although the arrival in the mid 1950s of the much more tuneable Chevrolet V8s ended the vogue for all but a few devotees who continued use well into the 1960s.  Buick acknowledged reality and, unusually, instead of following the industry trend and drawing attention to displacement & power, publicized their big torque numbers, confusing some (though probably not Buick buyers who were a loyal crew who sometimes would look down on more expensive Cadillacs because they were "flashy").  The unique appearance of the old Nailhead retains some nostalgic appeal for the modern hot-rod community and they do sometimes appear, a welcome change from the more typical small-block Fords or Chevrolets.

Lockheed SR-71 Blackbird (1964-1999).

Not confused about numbers was the USAF (United States Air Force) which was much interested in power for its aircraft but also had a special need for torque on the tarmac and briefly that meant another quirky niche for the Nailhead.  The Lockheed SR-71 Blackbird (1964-1979) was a long-range, high-altitude supersonic (Mach 3+) aircraft used by the USAF for reconnaissance between 1966-1998 and by the NASA (National Aeronautics & Space Administration) for observation missions as late as 1999.  Something of a high-water mark among the extraordinary advances made in aeronautics and materials construction during the Cold War, the SR-71 used Pratt & Whitney J58 turbojet engines which featured an innovative, secondary air-injection system for the afterburner, permitting additional thrust at high speed.  The SR-71 still holds a number of altitude and speed records and Lockheed’s SR-72, a hypersonic unmanned aerial vehicle (UAV) is said to be in an “advanced stage” of design and construction although whether any test flights will be conducted before 2030 remains unclear, the challenges of sustaining in the atmosphere velocities as high as Mach 6+ onerous given the heat generated and stresses imposed by the the fluid dynamics of air at high speed.

Drawing from user manual for AG330 starter cart (left) and AG330 starter cart with dual Buick Nailhead V8s (right).

At the time, the SR-71 was the most exotic aircraft on the planet but during testing and early in its career, just for the engines to start it relied on a pair of even then technologically bankrupt Buick Nailhead V8s.  These were mounted in a towed cart and were effectively the turbojet’s starter motor, a concept developed in the 1930s as a work-around for the technology gap which emerged as the V12 aero-engines became too big to start by hand but lacked on-board electrical systems to trigger ignition.  The two Nailheads were connected by gears to a single, vertical drive shaft which ran the jet up to the critical speed at which ignition became self-sustaining.  The engineers chose the Nailheads after comparing them to other large displacement V8s, the aspect of the Buicks which most appealed being the torque generated at relatively low engine speeds, a characteristic ideal for driving an output shaft, torque best visualized as a "twisting" force.  After the Nailhead was retired in 1966, later carts used Chevrolet big-block V8s but in 1969 a pneumatic start system was added to the infrastructure of the USAF bases from which the SR-71s most frequently operated, the sixteen-cylinder carts relegated to secondary fields the planes rarely used.

Saturday, February 21, 2026

Courtesy

Courtesy (pronounced kur-tuh-see or kurt-see (now rare))

(1) Excellence of manners or social conduct; polite behaviour.

(2) A respectful or considerate act or expression.

(3) Indulgence, consent, or acquiescence; something granted or extended in the absence of any specific right.

(4) Favor, consent, help, or generosity.

(5) An alternative spelling of curtsy (archaic and probably obsolete).

(6) Something done or performed as a matter of politeness or protocol.

(7) Something offered or provided free by the management.

(8) In law, the life interest that the surviving husband has in the real or heritable estate of his wife.

1175–1225: From the Middle English curteisie (courtly ideals; chivalry, chivalrous conduct; elegance of manners, politeness (also “a courteous act, act of civility or respect”)), from the Old French curteisie & cortoisie (courtliness, noble sentiments; courteousness; generosity) (which in modern French endures as courtoisie), from curteis (courteous).  The construct was courteo(u)s +‎ -y (the abstract noun suffix).  From the late thirteenth century the word was used and understood as “good will, kindness” but it gained the sense of “a reward, a gift” an echo of that enduring in the modern term “by courtesy of” (something received without payment or other consideration).  By the mid-fourteenth century courtesy was part of etiquette in the sense of “refinement, gentlemanly conduct” and related to that is the development of curteisie (source of the English “curtsy”.  The noun discourtesy (incivility, bad manners, rudeness) was in use by at least the 1550s and may have been influenced by the fifteenth century Old French discourtoisie, from discourtois although other forces in English construction were anyway by then prevalent.  The idea of a discourtesy being an “an act of disrespect” emerged late in the sixteenth century.  There is in polite society the notion of “common courtesy” which means the obligation to afford a certain respect to all, regardless of their status and courtesy is thought a good quality and a marker of civilization.  Clearly however, one can have “too much of a good thing” because some style and etiquette guides note the rare noun “overcourtesy” (excessive courtesy) which can suggest obsequiousness, sycophancy, or needless, time-consuming formalism.  Courtesy is a noun, verb & adjective, courtesying is a noun & verb, courtesied is a verb; the noun plural is courtesies.

The noun curtsy seems to have appeared in the 1540s with the sense of “an expression of respect (ie a variant of courtesy) while the specific meaning “a bending the knee and lowering the body as a gesture of respect” dates from the 1570s and the gesture was not then exclusive to women, the convention “men bow; women curtsy” not (more or less) standardized in England until the 1620s.  Predictably, it was the Victorians who coined “courtesy call” to refer to “a visit made for the sake of politeness”, in use by at least 1898.  The term was adopted as part of the language of diplomacy, describing the (usually symbolic) formal visits an ambassador or other emissary of a state makes to a head of state or other local official “out of courtesy” (ie with no substantive purpose).  That notion vaguely was related to the admiralty practice of the “courtesy flag”; a visiting vessel by convention and as a mark of respect flying the flag of the host nation (as well as that of her own) when entering port.  Perhaps opportunistically, in commerce, “courtesy card” is used as the alternative name for the “customer loyalty card” while the “courtesy clerk” was the employee who “bagged customers' purchases”; they were also called the “bagger” and the species is believed now functionally extinct, even in Japan where, until the “lost decade” (the 1990s although many economists claim that epoch has yet to end), they were once an established part of “shop culture”.  Probably the most memorable use of the word is in the term “courtesy flush” which is the “mid-sitting flush” (of a toilet) performed by men thoughtful enough to wish to avoid inflicting on others: “unpleasant odours”.

1973 Imperial LeBaron Four-Door Hardtop (left) and 1978 Chrysler New Yorker Brougham Coupe (right).  In cars, courtesy lamps (or lights, seen illuminated in the left-rear door kick panel (left)) are located where light may be needed (start buttons, where a passenger is about to put their feet etc) and they differ from “specific purpose” lights such as “map reading” lights (seen illuminated, right).  The significance of the name was in the “courtesy” the fittings exercised by automatically switching on when a door was opened.  By contrast, a map-reading light manually was activated as required.  Map-reading lights were fitted on more expensive vehicles because before maps migrated to glowing screens, they were on paper and to be read in a low-light environment, an external light source was needed.  

Both “uncourtesy” and “discourtesy” have at times been in use and the difference primarily is one of usage frequency, historical development, and semantic nuance.  Discourtesy is the established, idiomatic noun in modern English and is used variously to denote rudeness, a lack of courtesy, an impolite act and such.  The form emulated a use in the Old French and it has been in continuous, standard usage since the Middle English period; in contemporary English, it remains the correct and expected form.  Uncourtesy literally means “absence of courtesy” but has for centuries been rare and now is close to obsolete, appearing only in historic references or as a literary device.  That reflects the way English evolves because although the word adhered to the use of the un- prefix pattern (as in unkindness), people for whatever reason settled on the dis- form for this lexeme.  In structural linguistics, it’s true that because of the Latin origin of the “dis-” prefix, that would imply “reversal-negation-deprivation” whereas the Germanic “un-” would suggest “simple negation, but English lexical convention matters more than morphology and the pattern of use has made “discourtesy” the standard noun.  Probably that was a consequence of the Latin-influenced forms gaining sociolinguistic prestige over those words with a Germanic core from the native, Old English vocabulary.  After the Norman Conquest (1066 and all that), what came later to be known as the “Romance superstratum” (the massive influx of words and elements from Norman French and Latin) rapidly undertook a form of linguistic colonialism and words which entered English through French or Latin often arrived morphologically pre-packaged with Romance affixes; English did not build discourtesy from scratch; either it was inherited or imposed, depending on one’s views of such processes and that history is the reason disloyal & dishonest emerged and endured while unloyal & unhonest did not.  Pragmatically though, speakers settled, on a case-by-case-basis on whichever worked best: thus untruth, unlikely and such prevailing because they were the most pleasing pure negations, something more significant than the tendency for native Germanic bases to take “un-”, however a robust morphological bias this may describe.

Prelude to a handover: Donald Trump (left) and Barak Obama (right) shaking hands, the White House, November, 2016.  The handshake is one one of humanity's oldest courtesies. 

Barack Obama (b 1961; POTUS 2009-2017) was known carefully to choose his words (indeed, he’d complain he thought himself a better speech-writer than those hired to do the job) and he used “courtesy” when issuing something of a lament at the depiction of him and his wife (Michelle Obama (b 1964; FLOTUS 2009-2017) as “digitally altered” apes in a video shared by Donald Trump (b 1946; US president 2017-2021 and since 2025) on his Truth Social platform.  Although President Obama’s artful text only “indirectly addressed the racist video”, few would have failed to draw the connection between the two and for students of the technique, his response was a fine example of Michelle Obama’s “when they go low, we go high” school of thought.  While not mentioning the president, Obama observed there seemed no longer “…any shame about this among people who used to feel like you had to have some sort of decorum and a sense of propriety and respect for the office” but “that’s been lost”, adding “there's this sort of clown show that's happening in social media and on television.”  While he understood the political value in such a post because “it gets attention” and is “a distraction”, his feeling was “it's important to recognise that the majority of the American people find this behaviour deeply troubling” and that when travelling around the nation, he would meet people who “still believe in decency, courtesy, kindness.

Behind the famous lectern: Karoline Leavitt (b 1997; White House press secretary since 2025) who also has retreated a little from previously well-established standards of courtesy.

For a president to have reposted such an obviously racist trope would even a year ago have been unthinkable and a major political scandal but so rapidly has the culture shifted that within barely 48 hours, it had fallen from the news cycle, relegated to just another footnote in the history of Trump 2.0 (which definitely is not Trump 1.1).  Although there was widespread, if remarkably muted criticism from both Republicans and Democrats, the White House initially defended the video, calling the backlash “fake outrage” before noting the volume and deleting the video, blaming the sharing on an (unnamed) member of staff.  Citing the actions by the staffer, Mr Trump said “I didn't make a mistake” and thus would not be issuing an apology, adding he’d not watched the whole clip so didn’t see the offensive image.  Analysts of such things were divided on whether the fact the posting happened “in the middle of the night” made the “staffer cover story” less or more plausible but all that information attracted renewed interest when, a couple of days, from the famous lectern, Karoline Leavitt asserted everything posted on President Trump’s social media account comes “directly” from him: “It’s coming straight from the horse’s mouth” as she put it.  When you see it on Truth Social, you know it’s directly from President Trump. That’s the beauty of this president, his transparency in relaying the administration’s policies to the rest of you and the world.  Trumpologists were left to make of that what they could.

In literature, the “courtesy book” was a “book of etiquette” but many of the early editions of the sixteenth and seventeenth centuries went beyond the merely prescriptive in that they embodied a philosophy of the art of living (elegantly and with virtù (Italian for “virtue)) and provided a guide to help.  The ones which survive are noted for their high literary standard and are of great interest to historians because they’re an invaluable source for the history of education, ideas, customs and social behaviour of certain classes.  While the readership of some originally would have been the “upper middle class” or those who aspired to attain that status or at least emulate their manners, there were also courtesy books written for servants going to work in the houses or on the estates of the gentry; these existed so they’d know “how to behave”.  From the fifteenth century, changes in society were profound as the mass production of gunpowder and books exerted their respective influences and it was in this era the concept of “the gentleman” can be said to have emerged in a recognizably modern form, best understood in the most refined version in the term “Renaissance man”; from this point, culture and education really became courtesy's companion terms.  In earlier times, there had been what were known as “conduct books” but the emphasis in these was on morality deportment, manners and religion; they were very much in the “thou shall not” tradition of repressive Christianity.  Reflecting the way the Renaissance spread north and west, among the most influential of the courtesy books were those publish in Venice in the 1520s & 1530s, some of which began to appear in English translation by the mid-1570s.

Woodcut illustration for Book II (Cantos VII-XII) of The Faerie Queene (1590) by Edmund Spenser (circa 1552-1599).

Although The Faerie Queene was an epic-length poem recounting tales of knightly exploits and written in a deliberately archaic style, it merged history and myth, drawing especially on the Arthurian legends with each of the books an allegorical following of a knight who represents a particular virtue (holiness, temperance, chastity, friendship, justice and courtesy) which will be tested by the plot.  It’s long been of interest to scholars of the work of William Shakespeare (1564–1616) because Book Two appears to be a source for much of King Lear (circa 1605) (and has drawn the ire of some feminists) but some critics have suggest it can (almost) be described as the “Bible of Renaissance anthropocentric humanism, which, in its most idealistic form, was a sort of apotheosis of man.”  That may seem a little “purple” but in The Faerie Queene, with its depictions of the Renaissance conceptions of knightly and chivalrous conduct, the author’s purpose was clear.  Indeed, in the dedication he wrote: “The generall end therefore of all the booke is to fashion a gentleman or noble person in virtuous and gentle discipline.  In scope and literary form, it’s regarded still the “most ambitious courtesy book of all.

Mandy all dressed up but now with no place to go: The Right Honourable Peter “Mandy” Mandelson PC, Baron Mandelson of Foy and Hartlepool (b 1953) in the scarlet robes (the white trim now miniver or even faux fur rather than the traditional ermine) worn on certain ceremonial occasions in the House of Lords.

In 2008, Gordon Brown (b 1951; UK prime-minister 2007-2010), for reasons understandable if not admirable, granted Mandy a barony (the lowest step on the UK's five-rung peerage system), thereby "ennobling" him with a seat in the House of Lords.  The peerage entitled him (for life) to use the title "Lord" and, as one of His Majesty's privy counsellors (appointed in 1998), he may (again for life) add a post-nominal "PC" and be styled "the Right Honourable".  The membership of the Privy Council (essentially, members of the UK cabinet and a select few others) is unusual in that even if members cease to hold the role which justified their appointment, they don't cease to be a member; they just are "not summoned".

However, unlike the removal of a peerage (which requires an act of parliament), any member may at any time resign from the council as would be expected in the case of a scandal which can't be "swept under the mat" as in the preferred practice in Westminster, one famous example being John Profumo (1915–2006) who in 1963 (while aged 56, "happily married" and serving as Secretary of State for War (ie minister of defence)) was found to be having an affair with a young lady of 19 who simultaneously also was enjoying the affections of a KGB spy attached to the Soviet embassy in London.  That scandal played a part in dooming a Tory (Conservative Party) government which had been in office 13 years but never has Mandy been accused of sleeping with women who are in some state of concubinage with the Kremlin's spies so that's one transgression of which he'll never be accused.  Mandy since 2008 has for most purposes been styled as “Lord Mandelson” and that is not a courtesy title because as a “life peer” Mandy enjoys the same privileges (other than not being able to pass the barony to an eldest son) as one who inherited his barony and were he to have children, they would be entitled to style themselves “the honourable”.  It’s believed he does not plan to have children.

As a footnote, for everyone except royalty, some of the the five notches in the UK's peerage system now exist only for historic reference or to keep track of the still extant holders of the titles no longer or rarely created.  All the life peers are barons while since the mid-1960s the creation of viscounts (rung 2) & earls (rung 3) as hereditary titles has been rare and restricted to a handful of (mostly Tory) political party grandees.  No marquess (rung 4) has been created since 1936 and that may be symbolic because while it had become something of a convention to grant retiring prime ministers an earldom, a returning Viceroy of India had come to expect a marquessate.  Dukedoms (rung 5) have not been awarded to non-royal personages since the nineteenth century and the last recipient with no connection to a royal household by marriage enjoyed their elevation in 1874.  Within the family, the palace continues to dole-out dukedoms, earldoms & viscountcies to themselves, none of which appear to be merit-based awards but merit is hardly a concept the royal family would much like to intrude into any conversation involving them.  In truth, for those few who ponder such things, the practice probably is thought a harmless quaintness with even the most ardent monarchist likely to struggle to suggest exactly what Prince Edward (b 1964) has achieved to deserve being also Earl of Wessex (created 1999), Earl of Forfar (created 2019) and Duke of Edinburgh (granted 2023) although he might point out he’s not as bad as his brother Andrew so there’s that. 

Mandy in underpants (presumably his but who knows?).  There is no suggestion Mandy engaged in inappropriate or improper conduct with this unidentified young lady.

The photograph was released by the US DoJ (Department of Justice) in one of the tranches of files related to convicted paedophile sex trafficker Jeffrey Epstein (1953–2019).  It was shot in Epstein's New York City apartment when asked about the circumstances, his lordship responded by saying he “did not recall”.  About that (lack of) recollectionsome were uncharitably cynical but it does seem plausible given (1) Mandy doubtless spent much time meeting folk while wandering Epstein’s apartment in his underpants and (2) because Epstein had so many “acquaintances”, Mandy could hardly be expected to remember them all.

There are many “courtesy titles”, a class of address loosely defined as those governed by social convention, long-established practice or even administrative convenience.  In the UK’s intricate peerage system, courtesy titles are those used by certain relatives of peers, even though they do not themselves hold a substantive peerage and are not in law members of the peerage so thus never conferred with any right to sit in the House of Lords.  Although almost universally acknowledged, the courtesy titles are sustained only by convention rather than letters patent.  The interaction of the multi-tiered structure of the UK’s peerage system and the distinctions between (1) elder & younger sons and (2) daughters means there are a number of “rules” for courtesy titles but collectively they mean, for most purposes, depending on which rung on the peerage their father stands, sons commonly are styled either “Lord” or “The Honourable” and daughters “Lady” or “The Honourable”.  Wives also gain a honorific with them being granted a style based on the peerage held by their husband although other than the wives of dukes (who are “duchesses”), for most purposes, the convention follows calling non-ducal male peers “Lord” in that the wives are styled “Lady”.  Complicating all this is there are now also female peers so while, for example, the wife of a baron usually would be styled “Lady”, if a woman in her own right holds a barony, the most pedantic would use “baroness”.  All this may sound arcane but when moving in certain circles the official Order of Precedence can be socially consequential because, when attending events, it can dictate things like where one gets to sit and (more significantly), with whom.  So, the significance of the element “courtesy” in “courtesy title” is that use is “a courtesy extended” and not “a right acknowledged”.  That’s why Mr Andrew Mountbatten-Windsor (b 1960, formerly Prince Andrew, Duke of York, Admiral etc) was not deprived of being styled “Lord” (something usually attached to the younger son of a duke) because, in the legal sense, the title never existed, such use a mere (though widely observed) convention.  Of course, anyone can if they wish call him “Lord Andrew” though it seems unlikely many will bother.  Maybe his ex-wife will grant him that one final courtesy.

Winston Churchill (1875-1965; UK prime-minister 1940-1945 & 1951-1955) coveted medals and decorations but had little interest in titles; although the grandson of a Duke of Marlborough, his self-image was that of “a great House of Commons man” and one peer once lamented: “The House of Lords means nothing to him”, another noble noting: “he thinks us a collection of disreputable old gentlemen”.  In opposition in 1946 he’d been offered a KG (Knight The Most Noble Order of the Garter (1348), the oldest and most senor knighthood in the UK’s orders of chivalry) but declined because he didn’t like the idea of receiving something recommended by a socialist prime minister.  In 1953, back in office, he accepted because “now only the queen decides” but did regret having to become “Sir Winston” rather than the plain “Mr Churchill” he claimed to prefer, observing to the cabinet secretary: “I don’t see why I should not have the Garter but continue to be known as Mr Churchill.  After all, my father was known as Lord Randolph Churchill, but he was not a lord.  That was only a courtesy title.  Why should I not continue to be called Mr Churchill as a discourtesy title?  Sir Winston he became although his wife (1885-1977) would have preferred he not accept.  Other wives have been keener, the New Zealand trade union leader Sir Tom Skinner (1909–1991; President of the NZ FoL (Federation of Labour) 1959-1979) explaining to colleagues that while he had no wish to be Sir Tom, he didn’t fancy going home to tell his wife she wouldn’t soon be “Lady Skinner” although, given the darkly comic possibilities in that moniker, some women might have had second thoughts.

Woodrow Wilson (left) and Colonel House (right), New York City, 1916.

In the US, south of the Mason-Dixon Line, there have been many “captains” and “colonels” who had little or no military experience and some became well known including the Dutch-born impresario Colonel Tom Parker (1909–1997) who managed the singer Elvis Presley (1935-1977) and Colonel Edward House (1858–1938) who was for years the most influential of the camarilla in the White House of Woodrow Wilson (1856–1924; POTUS 1913-1921).  Colonel House had been a king-maker in Texas politics but during World War I (1914-1918) it was his advice in international relations Wilson often preferred and, despite lacking any background in matters of European politics, was appointed the US’s senior diplomat at the Paris Peace Conference (1919).  Disappointed by the outcome of the conference and feeling deceived by House who had, during the president’s absence in Washington DC, made certain decisions on his behalf, Wilson sundered their relationship; after House returned to the US, they would never meet again.  To the president it had been simply a matter of the colonel “getting ideas above his station” but, to his dying day, House believed the estrangement was engineered at least in part by the second Mrs Wilson (1872-1961), the “blame the wife” theory a recurrent theme in dynastic and political history.  There was of course also Colonel Harland Sanders (1890–1980) who was 1935 was created a member of the HOKC (Honorable Order of Kentucky Colonels) by Ruby Laffoon (1869–1941; governor of Kentucky 1931-1935) and his memory lives on in the fast food KFC (Kentucky Fried Chicken), a culinary institution now with more international recognition than the HOKC despite “Kentucky Colonel” being the highest honor bestowed by the state and the nation’s best-known colonelcy.

Colonel Sanders outside a Kentucky Fried Chicken store.  The latte-day name change to "KFC" was effected because the word "fried" had gained negative connotations.

The title became much associated with Texas and many of the Southern States. It was Texas Governor Jim Hogg (1851–1906; governor of Texas 1891-1895) who in 1893 appointed Edward House as a member of his gubernatorial staff, granting him the honorary rank which recipients were entitled to keep for life.  It was something that carried no military command or responsibilities and no federal commission, operating at the “social and political” level something like a Rotary Club membership in that while it conferred a certain perception of status, there was also an expectation (sometimes honoured, sometimes not) the member would fulfil some philanthropic or other worthy public services.  Legally, the basis for the practice dated from the historic rights of governors to appoint officers in their state’s militias and after federation, as the US evolved, the use was extended to non-military use, titles there quite sought after because with no honors systems granting them (knighthoods, peerages and such), those who attain some elected or appointed office (governor, admiral, judge, mayor, senator, ambassador etc), tend for life so to be styled; those who have several get to choose which they prefer.  South of the Mason-Dixon Line, there was an attachment to the tradition because of the cultural significance of the Antebellum Militias which, before the US Civil War (1861-1865) had enjoyed great social prestige, officers drawn often from the (obviously white) elites, plantation owners, lawyers, merchants and such; the granting of a colonelcy didn’t confer community authority: it acknowledged it.  Although much of what was “Southern culture” passed into history, the system remained and proved handy in the way knighthoods and peerages fulfil the function in the UK: (1) rewarding political supporters, (2) providing a quid pro quo to party donors, (3) cementing patronage networks and (4) “paying off” debts or “hushing up” those with troublesome knowledge.  By the early twentieth century, so numerous and associated with unsavoury politics had the colonelcies become that the title became a popular device for satirists.

Jaguar Nashville’s page listing its retired courtesy vehicles available for purchase, the concept much the same as the way “dealer demo cars” are sold.

While in the last decade-odd the engineering has mostly been good, Jaguar has yet to find a way to create a design language to match the distinctive “look” which for more than half-a-century underpinned its success after World War II (1939-1945).  The most recent attempt met with derision although that was a reaction more to the unsubtle DEI (diversity, equity & inclusion) “messaging” in the images used, the approach about as heavy-handed as the lines of the “concept EV” (electric vehicle) later shown.  Because what came to be understood as “a Jaguar” was so defined by what was done in the post-war years, there seems no obvious path for the designers so the company is left in a crowded field, competing on the basis of dynamic qualities and price-breakdown, able no longer to summon the intangible (but real) emotional appeal of old. 

In the US, the medical degree qualifying a graduate to seek to practice the profession is the MD (Doctor of Medicine) but elsewhere in the English speaking world the standard award is MB BS (Bachelor of Medicine & Bachelor or Surgery).  Despite that, most of the latter routinely are styled “doctor” despite not holding a doctorate (MD in the UK and Commonwealth (like a PhD (doctor of philosophy)) awarded as a higher degree after submission of a thesis rather than a course of instruction).  Historically, for medical practitioners, the use of the title “doctor” comes from many layers, dating from antiquity, medieval university practice, professional licensing traditions and later social conventions.  “Doctor” did originally denote “a doctorate” though not in the modern academic sense.  So, for those appropriately qualified in medicine (whether MD or MB BS) “doctor” really isn’t a “courtesy title” but a job title although, of late it’s been adopted also by dentists and vets and some insist that in such cases it should be thought of exactly that.  Doctor was from the Middle English doctor & doctour (an expert, authority on a subject), from the Anglo-Norman doctour, from the Latin doctor (teacher), from doceō (to teach).  It displaced the native Middle English lerare (teacher), from the Middle English leren (to teach, instruct) from the Old English lǣran & lēran (to teach, instruct, guide) which may be compared with the Old English lārēow (teacher, master) and lǣċe (doctor, physician).  In the US the MD evolved into a professional doctorate and the title “Dr” thus followed yet among US lawyers, although many qualify with the analogous JD (Doctor of Jurisprudence), not only is it though bad form for such graduates to use the title “doctor”, professional associations actively discourage use although the legal basis of any attempt at enforcement may be dubious.  As a general principle, the only lawyers in the US styled as “Dr” are those with a doctorate in law (which may be a PhD, DPhil etc).

The Barber Surgeon (1524), engraving by Lucas van Leyden (1494–1533), The Met, New York.

In the great Medieval universities (Bologna, Paris etc), the three higher faculties were Theology, Law and Medicine, graduates of each receiving the degree of Doctor which meant one was a licensed teacher of their discipline.  Thus, a “Doctor of Medicine” was someone qualified to teach medicine at a university, not merely practice it.  In pre-modern medicine (often a gruesome business) there was also distinct social and educational difference between physician and surgeons, especially in England where things became institutionalized.  The physicians were university-trained, held an MD and thus correctly were styled “Dr” whereas the origins of the surgeons lay in the old trade of barber-surgeons; trained by apprenticeship, they did not hold degrees and were styled “Mr”.  In the pre-anaesthetic age, surgical techniques tended to be primitive, often involving cutting or sawing off body parts so for the barbers, skilled in the use of razors and scissors, it was a natural evolution.  This division was in England institutionalized by the formation of the RCP (Royal College of Physicians (1518)) and RCS (Royal College of Surgeons (1843)).

The surgeons had anyway been schematic, guilds existing in London as early as the 1360s and a demarcation dispute between the “surgeons” and “barber surgeons” dragged on until 1540 when a “coming-together” between the “Worshipful Company of Barbers” and the “Guild of Surgeons” was engineered, creating the “Company of Barbers and Surgeons of London”.  However, while papering over the cracks (perhaps “bandaging the wound” might work better), the tensions remained and in 1745 the surgeons departed to form “Company of Surgeons” a royal charter (as Royal College of Surgeons in London) granted in 1800, extended in 1843 to become the “Royal College of Surgeons of England”.  Through all that, even after the early nineteenth century when a university education was made a condition of a licence to practice as a surgeon, the tradition endured and doctors, upon qualifying as members or fellows of the RCS revert from Dr to Mr.  In that context, “Mr” really is not a courtesy title but a professional equivalent and the because of the long history, the field is littered with linguistic quirks, “physician” both a generic term for all qualified to practice medicine and a specialist in internal medicine.  One perhaps once unexpected twist in the history of the history of the barber surgeon is that to this day there appear to be people who get medical advice (or at least a “second opinion”) from their hairdresser, presumably on the basis they’re a proven good source for fashion tips, relationship counselling and such.

Three galleries at the Lindsay Lohan Retrospective by Richard Phillips (b 1962), Gagosian Gallery, 555 West 24th Street, New York, 11 September-20 October 2012.

Described by the artist as an installation, the exhibition was said to be "an example of the way Phillips uses collaborative forms of image production to reorder the relationship of Pop Art to its subjects, the staging and format of these lush, large-scale works said to render them realist portraits of the place-holders of their own mediated existence."  The curator explained the retrospective was conducted as an example of the way collaborative forms of image production can reorder the relationship of Pop Art to its subjects, the staging and format used to render them realist portraits of "...the place-holders of their own mediated existence."  That seemed to explain things.

Vimeo's hosting of Lindsay Lohan, courtesy of Richard Phillips and Gagosian Gallery.

Historically, the term “courtesy of” implied “something provided by its owner to another party without payment or other consideration” and that’s presumably the way Vimeo is using the phrase although it’s likely the file was provided with certain limitations of use (such as “may not be edited”).  However, although for generations used in that way by the print media, on the internet “courtesy of” appears often to be used as a synonym of “attributed to” in cases where explicit permission for use has being neither sought or granted.  Owners of the rights (which may include copyright) can of course seek to have such content “taken down” regardless of any baseless assertion the use is by their “courtesy” but because of the volumes, such actions are by necessity limited and were, for example, some nihilistic psychopath to use on their blog an image of a 1961 Jaguar from the company’s website to illustrate some arcane aspect of a word’s etymology, JLR (Jaguar Land Rover, the corporate identity since 2013 when JLR was created by Tata Motors) likely would neither notice nor care.

Lindsay Lohan (2011) by Richard Phillips, hosted by Vimeo by courtesy of Richard Phillips and Gagosian Gallery.

Screened in conjunction with the 54th international exhibition of the Venice Biennale (June 2011), Lindsay Lohan was a short film the director said represented a “new kind of portraiture.”  Filmed in Malibu, California, the piece was included in the Commercial Break series, presented by Venice’s Garage Center for Contemporary Culture and although the promotional notes indicated it would include footage of the ankle monitor she helped make famous, the device doesn't appear in the final cut.

Directed by: Richard Phillips & Taylor Steele
Director of Photography: Todd Heater
Costume Designer: Ellen Mirojnick
Creative Director: Dominic Sidhu
Art Director: Kyra Griffin
Editor: Haines Hall
Color mastering: Pascal Dangin for Boxmotion
Music: Tamaryn & Rex John Shelverton

A variant on the idea is when an owner provides something “as a courtesy” and there are neither rules nor conventions governing this aspect of use.  First appearing in version 1.1 (1982) of PC-DOS (1980-1995), the obscure file EXE2BIN.exe was a command-line utility (it appeared also in other DOS (disk operating system) forks) that could be used to convert .EXE (executable) files into .COM or BIN (binary executables) files.  In the manuals, Microsoft noted “EXE2BIN is included with MS-DOS as a courtesy to software developers. It is not useful for general users.”  So it was a thoughtful gesture but MS-DOS grew at a faster rate than the capacity of the floppy diskettes which were then the only generally available medium for software distribution.  So, needing space for the essential stuff, when in 1987 MS-DOS 3.3 was released, EXE2BIN was no longer included, relegated to the Technical Reference Pack (available at extra cost).  That didn’t mean the decision was a discourtesy, just that space was needed and it was almost certain anyone likely to use EXE2BIN for its intended purpose anyway purchased the pack.  By the time MS-DOS v6.00 was released in 1991, EXE2BIN was thus no longer described as “a courtesy” and was included on one of the “Supplemental Disks” (US$5.00), which were also part of the “Resource Kit” (US$19.95).