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 ὄνυξ (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 φαγεῖν (phageîn) (to eat), the infinitive of ἔφαγον (éphagon) (I eat), which serves as aorist (essentially a compensator for sense-shifts) (for the defective verb ἐσθίω (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 180^o on their way to the tailpipe.  As an indication of the heat-soak generated by that 180^o turn, 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.

Janus

Janus (pronounced jey-nuhs)

(1) In Roman mythology, a god of doorways (and thus also of beginnings), and of the rising and setting of the sun, usually represented as having one head with two bearded faces back to back, looking in opposite directions, historically understood as the past and the future.

(2) When used attributively, to indicate things with two faces or aspects; or made of two different materials; or having a two-way action.

(3) In zoology, a diprosopus (two-headed) animal.

(4) In chemistry, used attributively to indicate an azo dye with a quaternary ammonium group, frequently with the diazo component being safranine.

(5) In astronomy, a moon of the planet Saturn, located just outside the rings.

(6) In figurative use, a “two-faced” person; a hypocrite.

(7) In numismatics, (as Janus coin),a coin minted with a head on each face.

(8) In architecture, as the jānus doorway, a style of doorway, archway or arcade, the name derived from the Roman deity Iānus (Janus) being the god of doorways.

Mid-late 1500s: From the Latin Iānus (the ancient Italic deity Janus), to the Romans of Antiquity, the guardian god of portals, doors, and gates; patron of beginnings and endings.  The Latin Iānus (literally “gate, arched passageway”) may be from the primitive Indo-European root ei- (to go), the cognates including the Sanskrit yanah (path) and the Old Church Slavonic jado (to travel).  In depictions, Janus is shown as having two faces, one in front the other in back (an image thought to represent sunrise and sunset reflect his original role as a solar deity although it represents also coming and going in general, young and old or (in recent years) just about anything dichotomous).  The doors of the temple of Janus were traditionally open only during the time of war and closed to mark the end of the conflict, the origins of allusions to the “temple of Janus” being used metaphorically to mean conflict or wartime and the month of January is named after Janus, the link being to “the beginning of the year”.  The most commonly used forms are Janus-faced & Janus-headed while specialized uses include Janus cat (a cat with diprosopus (a condition in which part of the face is duplicated on the head)) and Janus particle (in nanotechnology and physics, a spherical microscopic particle which has hemispheres with sharply differing properties, such as one hydrophilic hemisphere and one hydrophobic hemisphere).  Janus is a noun or proper noun and Janus-like, janian, janiform & januform are adjectives.

Prosthetic in studio (left), Ralph Fiennes (b 1962) on-set in character (centre) and Peter Dutton (b 1970; leader of the opposition and leader of the Liberal Party of Australia 2022-2025) imagined in the same vein (right).

The prosthetic used in the digitally-altered image (right) was a discarded proposal for the depiction of Lord Voldemort in the first film version of JK Rowling's (b 1965) series of Harry Potter children’s fantasy novels; it used a Janus-like two-faced head.  It's an urban myth Peter Dutton auditioned for the part when the first film was being cast but was rejected as being "too scary" but if ever there's another film, the producers could do worse than to cast him and should Mr Dutton not resume his political career (God forbid), he could bring to Voldemort the sense of menacing evil the character has never quite achieved, fine though Mr Fiennes' performance surely was.

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

However, even if too scary to be a Voldemort, for the next instalment in the Hellraiser franchise, Mr Dutton may be just scary enough to be the next “Pinhead”, the leader of the Cenobites, extra-dimensional, sadomasochistic creatures unable to differentiate between pain and pleasure.  As well, as looking the part, to depict a convincing Cenobite, Mr Dutton would absorb little of the director’s time in rehearsals because he’d need just to “act naturally”.  The first Hellraiser film was released in 1987 and there have since been nine sequels with Pinhead gaining a cult following among aficionados of the genre so, should he need a post-political career, definitely he should audition.  Interestingly, despite many opportunities, Mr Dutton has never denied being a Freemason and that also would work in his favour because it’s clear the Cenobites are a Masonic crew.

Roman cast bronze coin from the aes grave series, circa 225-217 BC; it shows the bearded head of Janus opposite the prow of a war galley.

In the lushly populated pantheon of Roman gods, Janus (Iānus) was one of the oldest, represented with two faces, one looking forwards and the other backwards (ie artistically, to the left & right).  In some of the myths, Janus was a native of Rome where, at some point, he ruled with Camesus while others claimed he came from Thessaly and ended up in Rome as an exile, welcomed there by Camesus, who shared his kingdom with him.  He ruled alone after the death of his host and in many tales Janus built a city on a hill (consequently called Janiculum as would have been the convention).  He had come to Italy with his wife (Camasenea or Camise) and the best known of their children was Tiberinus.  Janus received Saturn when he was driven from Greece by Jupiter, Saturn ruling over Saturnia, a village situated on the heights of the capitol.  By consensus, it seems that during the reign of Janus people unfailingly were honourable & honest (the stories from Antiquity are well-named as “myths”) and there was universal peace and prosperity.  While trade was as old as humanity and it’s clear there had been various means of exchange, it’s Janus who is credited with inventing “money” in the modern sense in which currency is understood, the oldest known Roman bronze Roman coins cast with an effigy of Janus on one side and the prow of a boat on the reverse.  Where the myth-tellers differ is whether the “civilizing” of the first natives of Latium can be attributed to Janus or Saturn but upon his death he was deified so there was some sense of gratitude.

The fate of Tarpeia, pressed (bludgeoned in some stories) to death by the shields of the Sabines.

In the way the myths did tend to multiply, other legends became attached to his memory, the most famous being the events which transpired after Romulus and his companions had carried off the Sabine women, prompting Titus Tatius and the Sabines to attack the city.  One night, driven by her lust for Tatius, the treacherous Tarpeia delivered the citadel into the hands of the Sabines but rather than wedding her as he had promised, Tatius had her put to death on the very Roman basis: “nobody likes a snitch”.  His soldiers had already scaled the heights of the Capitol when Janus launched a jet of hot water which put them to flight; to commemorate this military miracle, it was decreed that in time of war the door of the Temple of Janus should always be left open so in times of trouble the god could come to the aid of the Romans.  It was closed only if the Roman Empire was at peace.  Janus was said also to have married the Nymph Juturna who gave him a son, the god Fontus (or Fons).

(John) Foster Dulles (1888–1959; US Secretary of State 1953-1959, left) with Dwight Eisenhower (1890-1969; US POTUS 1953-1961, right), Washington DC, 1955.

The terms “Janus-faced” or “Janus-headed” are used in engineering an architecture to describe designs where the “face” or “head” of an object or shape is duplicated but the idea usually is applied to people.  To speak of someone as being “two faced” is to suggest, variously, they’re deceitful, duplicitous or hypocritical.  Many have been damned (and sometimes even admired) as “two-faced” but on one occasion, after someone had observed Foster Dulles was “a bit two-faced” about something, Winston Churchill (1875-1965; UK prime-minister 1940-1945 & 1951-1955) responded he couldn’t be because “…if he had two faces, he wouldn’t use that one.”  During his not infrequent criticisms of Dulles, habitually Churchill would speak of his “great slab of a face” although in retirement the old enmities (mostly) were forgotten and in May 1959 he visited him in his hospital room in Washington DC.  The two had “a pleasant chat” and within a fortnight Dulles was dead.

Noses down: In the Berghof on the Obersalzberg on 21 June 1939, Albert Speer (1905–1981; Nazi court architect 1934-1942; Nazi minister of armaments & war production 1942-1945, (left) and Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945, right) study plans for Linz's new opera house (photograph by Heinrich Hoffmann (1885–1957; Nazi court photographer), Bavarian State Library's Fotoarchiv Hoffmann.

Sometimes, such realizations, literal or figurative, come too late.  In the entry Speer made on 30 November 1946 in his clandestine prison diary (Spandauer Tagebücher (Spandau: The Secret Diaries) (1975)) is the passage: “Once again I am obsessed by the thought of Hitler’s two faces, and that for so long a time I did not see the second behind the first.  It was only toward the end, during the last months, that I suddenly became aware of the duality; and, significantly, my insight was connected with an aesthetic observation: I suddenly discovered how ugly, how repellent and ill proportioned, Hitler’s face was. How could I have overlooked that for so many years?”  Clearly, such thoughts stayed with him because on 8 December 1953 he noted: “Last night I had the following dream: In a rather sizable group, sometime toward the end of the war, I declare that everything is lost, that there is no longer a chance and the secret weapons do not exist.  The others in the dream remain anonymous. Suddenly Hitler emerges from their midst I am afraid that he will have heard my remark and may order my arrest.  My anxiety increases because Hitler’s retinue displays extreme iciness.  Nobody says a word to me.  Suddenly the scene changes.  We are in a house on a slope, with a narrow driveway.  Only gradually do I realize that it is Eva Braun’s [Eva Hitler (née Braun; 1912–1945)] house.  Hider comes to tea, sits facing me, but remains frosty and forbidding.  He chews the comers of his fingernails, as he so often did.  There are bloody places where they are bitten down to the quick.  Looking into his swollen face, I realize for the first time that perhaps Hitler wore his moustache in order to divert attention from his excessively large, ill-proportioned nose.  Now I am afraid that I will be arrested any moment because I have perceived the secret of his nose.  Heart pounding, I wake up.”

An eighteenth century carving of Janus in the style of a herm.

A part of the etymological legacy of the Roman Empire, the name Janus appears in several European languages.  In Danish (from the Latin Iānus), it’s a Latinization of the Danish given name Jens.  In Faroese, it’s a male given name which begat (1) Janussson or Janusarson (son of Janus) and (2) Janusdóttir or Janusardóttir (daughter of Janus).  In Estonian it’s a male given name.  In Polish, it’s both a masculine & feminine surname (the feminine surname being indeclinable (a word that is not grammatically inflected).  There is no anglicized form of the Latin name Janus.  Although it was never common and is now regarded by most genealogy authorities as "rare", when used in the English-speaking world the spelling remain "Janus".  Often, when Latin names were adopted in English, even when the spelling was unaltered, there were modifications to suit local phonetics but Janus is pronounced still just as it would have been by a Roman.

Tristar pictures used the Janus motif in promotional material for I Know Who Killed Me (2007).  Not well-received upon release, it's since picked up a cult following.

Dating from the 1580s, was from the Latin ianitor (doorkeeper, porter), from ianua (door, entrance, gate), the construct being ianus (arched passageway, arcade" + tor (the agent suffix).  The meaning “usher in a school” and later “doorkeeper” emerged in the 1620s white the more specific (and in Scotland and North America enduring) sense of “a caretaker of a building, man employed to attend to cleaning and tidiness” seems first to have been documented in 1708 (the now unused feminine forms were janitress (1806) & janitrix (1818).  Why janitor survived in general use in Scotland and North America and not elsewhere in the English-speaking world is a mystery although the influence of US popular culture (film and television) did see something of a late twentieth century revival and in  sub-cultures like 4chan and other places which grew out of the more anarchic bulletin boards of the 1980s & 1990s, a janitor is the (often disparaging) term for a content moderator for a discussion forum.

Augustus Orders the Closing of the Doors of the Temple of Janus (circa 1681), oil on canvas by Louis de Boullogne (1654–1733), Rhode Island School of Design Museum.

Among the more annoying things encountered by those learning English are surely Janus words, those with opposite meanings within themselves.  Examples include:  Hew can mean cutting something down or adhering closely to it.  Sanction may mean “formal approval or permission” or “an official ban, penalty, or deterrent”.  Scan can mean “to look slowly and carefully” or “quickly to glance; a cursory examination”.  Inflammable, which many take to mean “easy to burn” but the treachery of the word lies in the in- prefix which is often used as a negative, with the result that inflammable can be deconstructed as “not flammable”.  Trip can (and usually does) suggest clumsiness but can also imply some nimbleness or lightness of foot, as in the saying “trip the light fantastic”.  Oversight is a particularly egregious example.  To exercise oversight over someone or something is provide careful, watchful supervision yet an oversight is an omission or mistake.  In the ever-shifting newspeak of popular culture, the creation of the janus-word is often deliberate.  Filth can mean “of the finest quality”, wicked can mean “very good” and in the way which might have pleased George Orwell (1903-1950) "bad" has become classic “newspeak” (coined by Orwell for Nineteen Eighty-Four (1949) and used now to describe ambiguous, misleading, or euphemistic words, used deliberately to deceive, typically by politicians, bureaucrats or corporations).  “Bad weed” can mean the drug was either of fine or poor quality depending on the sentence structure: “that was bad weed” might well suggest it was of not good while “man, that was some bad weed” probably means it was good indeed.  Saying nice now seems rarely to mean what dictionaries say nice has come to mean but can variously describe something wonderful, appalling or disgusting.

Snack

Snack (pronounced snak)

(1) A small portion of food or drink or a light meal, especially one eaten between regular meals.

(2) In the phrase “go snack”, to share profits or returns (mostly archaic).

(3) In slang, someone physically attractive and sexually desirable (regionally limited).

(4) To have a snack or light meal, especially between regular meals.

1300–1350: From the Middle English verb snacchen, snacche, snache & snak & noun snacche, snak & snakee (to snap at, bite, seize (as of dogs) and cognate with the Middle Dutch snacken (to snap (as of dogs), from snakken and a variant of snappen (to snap)) and the Norwegian dialect snaka (to snatch (as of animals)).  In many European languages, snack is used in the same sense though in Swedish technically it’s deverbal of snacka (to chat, to talk).  The pleasing recent noun snackette is either (1) A small shop or kiosk selling snacks or (2) smaller than usual snacks (the word often used by dieters to distinguish their snacks from the more indulgent choices of others).  The synonyms include morsel, refreshment, bite, eats, goodies, nibble, pickings & tidbit (often misused as "titbit").  Specific classes of snack include "halal snack" (one which would be approved by a ayatollah, mufti, mullah etc as conforming to the strictures of Islam) and kosher snack (one which would be approved by a rabbi (or other rabbinical authority) as conforming to the dietary rules in Judaism).  Snack is a noun, adjective & verb, snackability, snackette & snackery are nouns, snackable is a noun & adjective snacking & snacked are verbs and snacky, snackish & snakelike are adjectives; the noun plural is snacks.

Cadbury Snack.

The original Middle English verb (to bite or snap (as of dogs), probably came either from the Middle Dutch or Flemish snacken (to snatch, snap; chatter), the source of which is uncertain although one etymologist traces it to a hypothetical Germanic imitative root snu- used to form words relating to the snout or nose.  The sense of "having a bite to eat; a morsel or light meal” dates from 1807.  The noun snack (a snatch or snap (especially that of a dog) developed from the verb and emerged circa 1400.  The meaning extended to "a snappish remark" by the 1550s and "a share, portion, part" by the 1680s (hence the now archaic expression “go snacks” which meant "share, divide; have a share in").  The familiar modern meaning "a small dish morsel to eat hastily" was first noted in 1757.  The first snack bar (a place selling snacks) seems to have opened in 1923 and the similar (often smaller, kiosk-type operations) snackettes were a creation of US commerce in the 1940s.  Snack bars could be either stand-alone businesses or something operating within a stadium, theatre, cinema etc.  The commercial plural form "snax" was coined in 1942 for the vending machine trade and the term “snack table” has been in use since circa 1950.

Nestlé Salted Caramel Munchies.

Functionally (though not etymologically) related was munchies (food or snack) from 1959, the plural of the 1917 munchie (snack eaten to satisfy hunger) from the 1816 verb munch (to eat; to chew).  The familiar (to some) phrase “got the munchies” in the sense of "craving for food after smoking weed (marijuana)" was US stoner slang which was first documented in 1971 but Nestlé corporation’s Munchies weren’t an opportunistic attempt to grab the attention of weed smokers.  The chocolate Munchies pre-date the slang use of the word by over a decade, introduced in 1957 by the Mackintosh company, Nestlé acquiring the brand in 1988 when it acquired Rowntree Mackintosh and it’s not known if the slang use can be attributed to some stoner coming back from the shop with a bag-full of the snacks and telling his grateful and ravenous companions “I’ve got the Munchies” but it's such a good explanation it should be accepted as verified fact; etymologists who disagree have no soul.  Munchies were originally milk chocolates with a caramel and biscuit centre but the range has in recent years proliferated to include centres of mint fondant, chocolate fudge, cookie dough and salted caramel.  The latest variation has been to use a white chocolate shell; this described as a “limited-edition” but it’s presumed if demand exists, it will become a standard line.

Lindsay Lohan stocking up her snack stash, London, 2008.

This is use of the word "snack" in the most modern sense: pre-packaged items designed usually for one or for a small group to share.  Although most associated with "treats and indulgences" (chocolate bars the classic example), not all snacks can be classified as "junk food" and there's a whole sub-section of the industry dedicated to the production (and, perhaps more to the point, marketing) of "healthy snacks".  Critics however caution that unless it's simply a convenient packaging of a "whole food" (such as nuts which have been processed only to the extend of being shelled), the label should be studied because even food regarded in its natural state as a "healthy choice" can be less so when processed.  The markers to assess include the obvious (fat, salt, sugar) as well as chemicals and other additives, some with names only an industrial chemist would recognize.

Peter Dutton (b 1970; leader of the Australian Liberal Party 2022-2025) enjoying a “Dagwood Dog”, Brisbane Ekka (Exhibition), August 2022.  Because of the context (event, location, not sitting at a table, dish, time of day), this he would probably have regarded “a snack” rather than “a meal”.  The “Dagwood Dog” was a local variant of the “HotDog” or “Corn Dog” and Mr Dutton never denied being a Freemason.

A “snack” is by definition both (1) of a lesser quantity than a “meal” and (2) eaten at a different time than the meal (as conventionally defined: breakfast, lunch, dinner) but there are nuances.  For some, the infamous “midnight snack” (a late-night or early-morning trip to the bridge for those who awake with hanger pangs or who can’t sleep because they are so hungry) sometimes evolves, ad-hoc, into what others would call “a meal” while the curious “supper” can be anything from a “light snack” to a synonym for “dinner”.  Additionally, it’s variable by individual: what a Sumo wrestler calls a “snack” might well for a week feed a ballerina.  So there’s nothing which exactly defines the point at which a “snack” should properly be called a “meal” because it’s something geographically, culturally and individualistically deterministic.  A hot dog presented on a plate might be called “a meal” whereas one eaten while wandering around the Minnesota State Fair might be though “a snack”.  It’s tempting to imagine (at least in Western culture) that if utensils (knife, fork, chopsticks et al) are used it must be a meal and snacks are inherently finger food but the list of exceptions to that will be long.

Snack-shaming: A specific sub-genre of "fat-shaming", the modern convention is that when seen with shopping carts laden with processed snacks, fat people may be photographed and posted on social media, provided their identity adequately is concealed.

A snack for one can also be something like an apple or banana (the latter pre-packaged by nature with its own bio-degradable wrapping) and "snack" was used to describe such quick and easy "bites to eat" by the early eighteenth century, building on the slightly early use meaning "a quickly prepared meal" (as opposed to an elaborate dish) and the term became popular to describe meals carried by workers (the sandwich the exemplar) to eat on their break.  Prior to that "to snack" was to suggest one was having just part of the whole (such as a "slice of cake") and that use was from the traditional use of the word to mean "a portion" of just about anything (land, money, food etc).  As English evolved, the word came to be associated almost exclusively with food and the now rare slang use in the finance industry is the only survivor of earlier use.  It has though become an idiomatic form: (1) A person with an obviously high BMI (body mass index (ie looks fat)) can be "snack-shamed" if (1a) observed eating unhealthy snacks or (1b) with supermarket cart loaded with them; (2) A "snack-slut" is one who can't resist snacking and is used as a self-descriptor (socially acceptable and usually amusing if subject has low BMI); (3) A "snaccident" (a portmanteau word, the blend being snac(k) + (ac)cident)) refers to a snack eaten "by accident" and the validity of such excuses must be assessed on a case-by-case-basis (again, tends to be BMI-dependent); (4) A "snackery" is (4a) a place where one buys one's snacks or (4b) an informal term used to describe the place where dead fat people are sent (on the model of "knackery" (a slaughterhouse where animal carcasses unfit for human consumption or other purposes are rendered down to produce useful materials such as adhesives)); (5) A "snackette" is variously (5a) an especially small snack, (5b) a small outlet selling snacks (on the model of "luncheonette" (a small restaurant with a limited range of dishes)) or (5c) a (usually one-off) sexual partner about whom one has no future plans.