Daughter

Daughter (pronounced daw-ter)

(1) A female child or person in relation to her parents.

(2) Any female descendant (now rare).

(3) A person said to be related to an institution as if by the ties binding daughter to parent (daughter of the church; Daughters of the American Revolution etc).

(4) Any female (archaic in the English-speaking world but used sometimes by some cultures to indicate some closeness of family relationship, rather as aunt & uncle are sometimes used in the West).

(5) Any institution or other thing personified as female and considered with respect to its origin (eg Australia is the daughter of the six colonies).

(6) In chemistry & physics (of a nuclide), an isotope formed by radioactive decay of another isotope.

(7) In biology, pertaining to a cell or other structure arising from division or replication (eg the daughter cell; daughter DNA).

(8) As daughterboard, IBM’s original descriptor for boards (now called piggyback boards, riser cards or mezzanine boards) which directly (usually by soldering) connect to motherboards (now called main or system-boards).

(9) In historical linguistics, as daughter language (known also as a descendant language), a language descended from another (its mother language) through genetic descent as opposed to a "sister language" which is one which also evolved from the proto- mother language but formed a separate branch.  The model is that of a tree where the mother language is the trunk and the branches the daughters and sisters (each of which can have their own daughters and sisters).  The image of the tree represents the diversification of languages from a root source.

(10) In fantasy writing, as merdaughter, a mermaid daughter.

(11) In slang, as “daughter of Sappho”, a lesbian.

Pre 950: From the Middle English goghter & doughter, from the Old English dohtor (female child considered with reference to her parents; daughter) from the Proto-West Germanic dohter, from the Proto-Germanic dokhter and the earlier dhutēr, from the primitive Indo-European dughtḗr, source also of the Sanskrit duhitā & duhitar-, the Avestan dugeda-, the Armenian dustr, the Old Church Slavonic dušti, the Lithuanian duktė and the Ancient Greek thygátēr & thugatēr).  The Proto-Germanic forms were the source also of the Old Saxon dohtar, the Old Norse dóttir, the Old Frisian and Dutch dochter, the Old High German tohter, the German Tochter and the Gothic dauhtar.  Daughter, daughterhood, daughtership & daughterling are nouns and daughterless, daughtered, daughterly & daughterlike are adjectives; the noun plural is daughters or daughtren (archaic).

Dutiful daughter: Donald Trump (b 1946; US president 2017-2021 and since 2025) with daughter Ivanka Trump (b 1981;  senior advisor in the first Trump administration 2017-2021) in an extended (stretch) Lincoln Continental limousine, New York City, circa 1992.

The common Indo-European word was lost in Celtic and Latin; the Latin filia (daughter) is the feminine form of filius (son), the most obvious connection in Modern English being young female horses: a filly is a beast under four and thus too young to be a mare and filly is still used as humorous and affectionate slang to refer to a lively girl or young woman.  The modern spelling evolved in the sixteenth century in southern England.  In late Old English, the form also emerged of a "woman viewed in some analogous relationship" (to her native country, church, culture etc and that use persists to this day) and from circa 1200 could be used to describe anything regarded as feminine.  Daughter-in-law is attested from the late fourteenth century.  The noun plural is daughters, the long archaic form being daughtren and the last surviving obsolete spelling was dafter.  The adjective daughterly (relating to or characteristic of a daughter) is technically neutral but has long denoted “dutiful (towards parents)”, the “dutiful daughter” a frequent reference in English literature, often to damn those judged insufficiently dutiful although in the English-speaking world there was never much of a tradition of "honor killing" as still practiced east of Suez; daughters who disappointed the family might variously be disinherited or ostracized but they were allowed to live.  As well as dutiful, daughters can be difficult and Theodore Roosevelt (TR, 1858–1919; POTUS 1901-1909) was once asked by some Republican Party apparatchiks to "control his daughter" (Alice Lee Roosevelt Longworth (1884–1980) who had a mind of her own).  He replied he "could be president of the United States or he could control Alice but he could not do both."  

The noun step-daughter was from the Old English stepdohtor, the formation aligned with the German Stieftochter.  Grand-daughter, like the related forms to describe recent ancestors and relations dates from 1610.  The noun god-daughter (female godchild, girl one sponsors at her baptism) was adopted in the mid-thirteenth century as a modification of the Old English goddohtor.  The noun filicide (action of killing a son or daughter) dates from the 1660s, the construct being the Latin filius/filia (son/daughter) + -cide (a killing), the meaning extended after 1823 to "one who kills a son or daughter", filicidal appearing shortly after.  Bathsheba was the Biblical wife of King David, mother of Solomon, from the Hebrew Bathshebha (literally "daughter of the oath" from bath (daughter)).

Lindsay Lohan: Confessions of a Broken Heart (Daughter to Father).

I wait for the postman to bring me a letter

I wait for the good Lord to make me feel better

And I carry the weight of the world on my shoulders

A family in crisis that only grows older

Why'd you have to go

Why'd you have to go

Why'd you have to go

Daughter to father, daughter to father

I am broken but I am hoping

Daughter to father, daughter to father

I am crying, a part of me is dying and

These are, these are

The confessions of a broken heart

And I wear all your old clothes; your polo sweater

I dream of another you the one who would never, never

Leave me alone to pick up the pieces

A daddy to hold me, that's what I needed

So why'd you have to go

Why'd you have to go

Why'd you have to go

Daughter to father, daughter to father

I don't know you, but I still want to

Daughter to father, daughter to father

Tell me the truth, did you ever love me'

Cause these are, these are

The confessions of a broken heart, of a broken heart

I love you

I love you

I love you

I, I love you

Daughter to father, daughter to father

I don't know you, but I still want to

Daughter to father, daughter to father

Tell me the truth, did you ever love me'

Did you ever love me?

These are

The confessions of a broken heart, oh yeah

And I wait for the postman to bring me a letter

Songwriters: Kara Dioguardi (b 1970), Lindsay Lohan (b 1986) & William Wells (b 1973).  Lyrics © BMG Rights Management, Kobalt Music Publishing, Universal Music Publishing Group, Warner Chappell Music.  From the album A Little More Personal (Raw) (2005).

Kim Ju Ae, First Daughter of the DPRK

Donald Trump is by all accounts a good father and no doubt gave his daughters the odd tour of the hotels and real-estate developments which are the core of the family business but as daddy-daughter days go, they probably weren’t as much fun as those arranged for Kim Ju Ae (b circa 2013) by Kim Jong Un (Kim III, b 1982; Supreme Leader of DPRK (North Korea) since 2011).  Like just about everything else done by the Supreme Leader, his daddy-daughter days are well-publicized by the KCNA (Korean Central News Agency) and Kim Ju Ae had been seen accompanying her father while inspecting nuclear warheads, watching ICBM (inter-continental ballistic missile) launches and reviewing military parades although the most recent highlight was of her driving a battle-tank on manoeuvres over a plain (she seemed to be having fun).  With an elaborate headquarters located at 1 Potonggang-dong in Pyongyang's Potonggang District) the KCNA may be the world's most productive state news agency and is the best source for new Kim Jong Un content.  Of course, Mr Trump is commander-in-chief of the world’s best-equipped military and, if so minded, could on next daddy-daughter day take his daughters tank-driving although their enthusiasm for such things may be restrained.

Daddy-daughter day.  DPRK postage stamp issued in 2018 to mark Kim Ju Ae’s presence at a military base where ICBMs were being displayed.  Like many young girls, Kim Ju Ae is much taken by the beauty of nuclear weapons.

Although not discussed by the KCNA, there has in the West been speculation Kim Ju Ae is being groomed to succeed Kim Jong Un as leader of the DPRK (and thus become Kim IV) should (God forbid) the Supreme Leader drop dead.  One important aspect of the succession would be the choice of title to be granted to Kim IV, not a minor matter in the DPRK where the personality cult of the leaders has so assiduously been cultivated.  The DPRK’s leadership titles are not arbitrary honorifics; they are components of the Suryŏng system, a carefully managed political theology blending Confucian familial hierarchy, Marxist terminology and quasi-religious veneration. Structurally, the key functional term is 령도자 / 지도자 (leader), the adjectives chosen to mark legitimacy, continuity, and distinction and thus far the nomenclature has included:

Kim Il Sung (Kim I): 위대한 수령 (Widaehan Suryŏng); “Great Leader, 1948-1994”.

Kim Jong Il (Kim II): 친애하는 지도자 (Chin’aehan Jidoja); “Dear Leader, 1994-2011”.

Kim Jong Un (Kim III):  최고령도자 (Ch’oe-go Ryŏngdoja); “Supreme Leader since 2011”.

Were Kim Ju Ae to be elevated as successor, it would be the first time since the formation of the DPRK in 1948 that the leadership would be held by a woman but on forums in the RoK (Republic of Korea (the "puppet state" of South Korea)), users seems to think this not significant and that it was at least possible the “Supreme Leader” epithet might be re-used, the argument being (1) “Supreme Leader” has become accepted as the apex designation, (2) institutional continuity would be maintained and (3) it would conform with the dynamics of 삼대세습 (三代世襲, samdae sesŭp), the construct being 삼대 (三代) (three generations) +세습 (世襲) (hereditary succession).  In Korea, the “three-generation hereditary succession” of the Kim dynasty is the Great Leader / Dear Leader / Supreme Leader sequence and for various reasons it’s unthinkable that the “Great Leader” title could be re-used because part of Kim gamily mystique (of which much has been manufactured) is that as the founder of the DPRK, Kim Il Sung is and must remain unique.

Daddy-daughter day.  KCNA official image of Kim Ju Ae’s driving a Cheonma-2 (M2024) third generation main battle tank, March, 2026.

Indeed, despite being three decades dead, Kim Il Sung remains president.  Kim Il-sung held an array of titles during his decades as the DPRK’s dictator, the proliferation not unusual in communist nations where the ruling party’s structures are maintained alongside the formal titles of state with which a nation maintains relations with the rest of the world.  In office for a remarkable 45 years, he was designated premier (head of government) between 1948-1972 and president 1972-1994.  Additionally, he was between 1949-1994 head of the WPK (Workers' Party of Korea) and in that role was styled successively as chairman (1949-1966) and general secretary (after 1966).  During his 45-year rule, there were ten POTUSs, six RoK presidents, nine British prime ministers and ten Australian prime ministers and his tenure in office spanned the era of the Soviet Union from its apotheosis under comrade Stalin (1878-1953; Soviet leader 1924-1953) to its collapse in 1991.

Daddy-daughter day. DPRK postage stamp issued in 2018 to mark Kim Ju Ae’s presence at a military base where ICBMs were being displayed.

Being dead however proved no obstacle to The Great Leader extending his presidency, the collective office Chuch'ejosŏnŭi yŏngwŏnhan suryŏng (Eternal leaders of Juche Korea) created in 2016 by the insertion of an enabling line in the preamble to the constitution.  What this amendment did was formalise the position of The Great Leader and his late son (The Dear Leader) as the “eternal leaders” of the DPRK and was said to be part of juche, the term used to describe the DPRK’s national philosophy, a synthesis of The Great Leader’s interpretation of (1) Korean tradition and (2) Marxist-Leninist theory.  It was an interesting legal move.  Constitutionally, the office of president was established only in 1972; prior to that the role of head of state had been purely ceremonial and held by respected party functionaries, all power exercised by The Great Leader in his capacity as premier and general secretary of the WPK.  However, merely by being president, The Great Leader vested the office with such prestige that upon his death in 1994, the position was left vacant, The Dear Leader not granted the title.  That nuance of succession for a while absorbed the interest of the DPRK watchers but attempts to invest the move with any significance abated as DPRK business, though in the more straitened circumstances of the post Soviet world, continued as usual.

The constitution was again revised in 1998.  Being a godless communist state, no fine theological points stood in the way of declaring The Great Leader the DPRK’s “Eternal President”, the latest addition to the preamble declaring: “Under the leadership of the Workers' Party of Korea, the Democratic People's Republic of Korea and the Korean people will hold the great leader Comrade Kim Il-sung in high esteem as the eternal President of the Republic.”  The constitution, as revised and promulgated after the death of The Dear Leader, again referred to The Great Leader as “Eternal President of the Democratic People's Republic of Korea” but in 2016 (The Dear Leader having been dead for an apparently decent duration), another amendment to the preamble changed the administrative nomenclature of executive eternity to “Eternal leaders of Juche Korea”, the honor now jointly held by the leaders great & dear.  It was another first for the Kims and the legal mechanism is expected to be replicated after the death of the Supreme Leader.

KCNA official photograph: Ri Sol-ju (b circa 1987; wife of Supreme Leader Kim Jong-un) (left), Kim Ju-ae (centre) and Kim Jong-un (right), undisclosed location, February 2023.

Although the dynastic model (Kim I, Kim II, Kim II) may appear to be that of a hereditary monarchy, the regime makes an ideological distinction between the DPRK and decadent practices elsewhere, the succession based on 백두혈통 (Paektu hyŏlt’ong) (Mount Paektu bloodline) with the legitimacy conferred not by “inheritance” but rather “revolutionary lineage”.  Sitting on the Chinese border, Mount Paektu is an active volcano and the highest peak on the Korean peninsula; as well as being important in ancient Korean mythology, it figures also in the legends of the Kims, Kim Il-sung said to have led a resistance against Japan's occupation of the peninsula from bases on Mount Paektu and it was there Kim Jong-il was born.  Now, with “three-generation hereditary succession” accomplished, in a sense, samdae sesŭp has been perfected and in South Korea (or “the puppet state to the south” as the KCNA puts it), the feeling the internal logic of henceforth maintaining a “Supreme Leader” would be compelling although that won’t stop some in the puppet state dubbing her “Supreme Leaderette”.

IBM: Mothers and daughters but not sisters

IBM PC-1 (1981).

IBM didn’t invent the motherboard.  It evolved into the form in which it became well-known in the early 1980s because advances in technology had reduced the size of certain components (CPU, memory etc) which used to be separate devices which were wired together to run as a unit.  When IBM released the original PC-1 in 1981, it was built around a motherboard which contained slots into which expansion boards could be plugged and various connectors with which compatible devices could be connected.  Given there were motherboards, IBM, in the innocent age of the 1980s, decided other peripheral components, those usually directly embedded through soldering to the motherboard, should be called daughterboards.  Quite how the nomenclature was chosen is either not known or IBM has suppressed the records and the fanciful notion that it’s because the early motherboards contained more female than male connections is just an industry myth.  In the literature, there’s also the odd reference to sisterboards though the name never caught on and "daughter-board" was sometime used to describe cards which plugged-into expansion cards but such devices were rare.  Obviously, if a server has two daughter-boards installed, there's no reason why they couldn't, in that configuration, be called “sister-boards” but that convention never evolved.

IBM PC-1 motherboard (1981), expansion slots at the top right; it seemed small at the time.

A daughterboard was a circuit board which extended the circuitry of the motherboard and, being soldered, was connected directly, unlike the inherently swappable expansion cards which plugged-in using the bus or other (most often serial, parallel or SCSI (small computer system interface)) interfaces.  Like a motherboard, daughterboards had sockets, pins, plugs and connectors to permit connection to other boards or other devices and have been both part of initial product releases and post-launch updates, the best known example of which were the MIDI (musical instrument digital interface) daughterboards used to add functionality to a sound card.  Except for the odd special build for someone really nerdy, modern PCs (personal computer) now rarely have daughterboards although they’re still seen on servers.

Daughterboard (left) and bored daughter (right):  1984 Apple Macintosh 128 KB motherboard with SCSI daughterboard (right) and additional RAM daughterboard (left).  In 1984, having a machine with 1 MB RAM was a way to impress people.  An obviously bored Chelsea Clinton (b 1980; FDOTUS 1993-2001) is pictured listening to crooked Hillary Clinton (b 1947; US secretary of state 2009-2013) again explain why her never becoming POTUS was the fault of others, Clinton Global Initiative annual meeting, Hilton Hotel, Manhattan, New York City, 18 September, 2023.  Like us all, Chelsea had heard it many times before.

Even before the twenty-first century interest in gender and gendered pronouns, IBM had renamed everything in the corporation which could in anyway be thought sexist, racist etc.  By the late 1990s, although the term motherboard continued widely to be used, IBM had started calling them them variously main-boards or system-boards; daughterboards became piggyback or mezzanine boards.  Interestingly, as part of the linguistic sanitation, IBM started calling hard disk drives "hard files" which was either looking forward to solid-state storage or just one of those inexplicable things which happens when projects assume their own inertia; whatever the reason, "hard file" never caught on.  The terms male and female for connections (modeled on human anatomy and used in everything from plumbing to the space programme) were retained because their use was universal and convenient or mnemonic gender-neutral substitutes eluded even IBM's language police.  Male and female connectors may be about the only gender-loaded terms which will escape being labelled "micro-aggressions".

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 and Mr Dutton is the latest in a long line of right-wing politicians with a history of extolling the virtues of “private enterprise” and criticizing “government waste” who seem 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.