Catwalk

Catwalk (pronounced kat-wawk)

(1) A narrow walkway, especially one high above the surrounding area, used to provide access or allow workers to stand or move, as over the stage in a theater, outside the roadway of a bridge, along the top of a railroad car etc; any similar elevated walkway.

(2) By extension, a narrow ramp extending from the stage into the audience in a theatre, nightclub etc, associated especially with those used by models during fashion shows (although the gender-neutral “runway” is now sometimes used in preference to “catwalk”).

(3) In nautical architecture, an elevated enclosed passage providing access fore and aft from the bridge of a merchant vessel.

(4) By extension, as "the catwalk", industry slang for the business of making clothes for fashion shows.

1874: The construct was cat + walk.  The use of catwalk to describe a long, narrow footway was a reference initially to those especially of such narrowness of passage that one had to cross as a cat walks.  It applied originally to ships and then theatrical back-stages, the first known use with a fashion show runway dating from 1942.  In architecture on land and at sea, the catwalk soon lost its exclusive association only with the narrow and came instead to be defined by function, used to describe any walkway between two points.  The noun plural is catwalks.  For both nautical and architectural purposes, the English catwalk was borrowed by many languages including Norwegian (Bokmål & Nynorsk) and Dutch and it’s used almost universally in fashion shows.  Some languages such as the Ottoman Turkish قات‎ use the spelling kat and some formed the plural as catz.

Cat (any member of the suborder (sometimes superfamily) Feliformia or Feloidea): feliform (cat-like) carnivoran & feloid or any member of the subfamily Felinae, genera Puma, Acinonyx, Lynx, Leopardus, and Felis or any member of the subfamily Pantherinae, genera Panthera, Uncia and Neofelise and (in historic use, any member of the extinct subfamily Machairodontinae, genera Smilodon, Homotherium, Miomachairodus etc, most famously the Smilodontini, Machairodontini (Homotherini), Metailurini, "sabre-toothed cat" (often incorrectly referred to as the sabre-toothed tiger) but now most associated with the domesticated species (Felis catus) of felines, commonly and apparently since the eight century kept as a house pet)) was from the Middle English cat & catte, from the Old English catt (male cat) & catte (female cat), from the Proto-West Germanic kattu, from the Proto-Germanic kattuz, from the Latin cattus.

Cat has most productively been applied in English to describe a wide variety of objects and states of the human condition including (1) a spiteful or angry woman (from the early thirteenth century but now almost wholly supplanted by “bitch” (often with some clichéd or imaginative modifier)), (2) An aficionado or player of jazz, (3) certain male persons (a use associated mostly with hippies or sub-set of African-American culture), (4) historic (early fifteenth century) slang for a prostitute, (5) in admiralty use, strong tackle used to hoist an anchor to the cathead of a ship, (6) in admiralty use, a truncated form of cat-o'-nine-tails (a multi-lash (not all were actually nine-tailed)) whip used by the Royal Navy et al to enforce on-board discipline), (7) in admiralty use, a sturdy merchant sailing vessel (long archaic although the use endures to describe the rather smaller "catboat", (8) as “cat & dog (cat being the trap), a archaic alternative name for the game "trap and ball", (9) the pointed piece of wood that is struck in the game of tipcat, (1) In the African-American vernacular, vulgar slang or the vagina, a vulva; the female external genitalia, (11) a double tripod (for holding a plate etc) with six feet, of which three rest on the ground, in whatever position it is placed, (12) a wheeled shelter, used in the Middle Ages as a siege weapon to allow assailants to approach enemy defenses, (13) in admiralty slang, to vomit, (14) in admiralty slang to o hoist (the anchor) by its ring so that it hangs at the cathead, (15) in computing, a program and command in the Unix operating system that reads one or more files and directs their content to the standard output (16) in the slang of computing, to dump large amounts of data on an unprepared target usually with no intention of browsing it carefully (which may have been a sardonic allusion of “to catalogue or a shortened form of catastrophic although both origins are unverified, a street name of the drug methcathinone, (17) in ballistics and for related accelerative uses, a shortened form of catapult, (18) for purposes of digital and other exercises in classification, a shortening of category, (19) an abbreviation of many words starting with “cat”) (catalytic converter, caterpillar (including as “CAT” by the manufacturer Caterpillar, maker of a variety of earth-moving and related machines)) catfish, etc, (20) any (non military-combat) caterpillar drive vehicle (a ground vehicle which uses caterpillar tracks), especially tractors, trucks, minibuses, and snow groomers.

Walk was from the Middle English walken (to move, roll, turn, revolve, toss), from the Old English wealcan (to move round, revolve, roll, turn, toss) & ġewealcan (to go, traverse) and the Middle English walkien (to roll, stamp, walk, wallow), from the Old English wealcian (to curl, roll up), all from the Proto-Germanic walkaną & walkōną (to twist, turn, roll about, full), from the primitive Indo-European walg- (to twist, turn, move).  It was cognate with the Scots walk (to walk), the Saterland Frisian walkje (to full; drum; flex; mill), the West Frisian swalkje (to wander, roam), the Dutch walken (to full, work hair or felt), the Dutch zwalken (to wander about), the German walken (to lex, full, mill, drum), the Danish valke & waulk), the Latin valgus (bandy-legged, bow-legged) and the Sanskrit वल्गति (valgati) (amble, bound, leap, dance).  It was related to vagrant and whelk and a doublet of waulk.

Walk has contributed to many idiomatic forms including (1) in colloquial legal jargon, “to walk” (to win (or avoid) a criminal court case, particularly when actually guilty, (2) as a colloquial, euphemistic, “for an object to go missing or be stolen, (3) in cricket (of the batsman), to walk off the field, as if given out, after the fielding side appeals and before the umpire has ruled; done as a matter of sportsmanship when the batsman believes he is out or when the dismissal is so blatantly obvious that the umpire’s decision is inevitable, (4) in baseball, to allow a batter to reach first base by pitching four balls (ie non-strikes), (5) to move something by shifting between two positions, as if it were walking, (6) (also as “to full”, to beat cloth to give it the consistency of felt, (6) in the slang of computer programming, to debug a routine by “walking the heap”, (7) in aviation, to operate the left and right throttles of an aircraft in alternation, (8) in employment, to leave, to resign, (9) in the now outlawed “sports” of dog & cock-fighting, to put, keep, or train (a puppy or bird) in a walk, or training area, (10) in the hospitality trade, to move a guest to another hotel if their confirmed reservation is not available at the time they arrive to check-in (also as to bump), (11) in the hospitality trade, as “walk-in”, a customer who “walks-in from the street” to book a room or table without a prior reservation, (12) in graph theory, a sequence of alternating vertices and edges, where each edge's endpoints are the preceding and following vertices in the sequence, (13) In coffee, coconut, and other plantations, the space between the rows of plants (from the Caribbean and most associated with  Belize, Guyana & Jamaica, (14) in orchids, an area planted with fruit-bearing trees, (15) in colloquial use, as “a walk in the park” or “a cakewalk”, something very easily accomplished (same as “a milk-run”) and (16) in the (now rare) slang of the UK finance industry, a cheque drawn on a bank that was not a member of the LCCS (London Cheque (check in the US) Clearance System), the sort-code of which was allocated on a one-off basis; they had to be "walked" (ie hand-delivered by messengers).

A crop top appended to Duran Lantink's (b 1998) fall 2025 Duranimal collection, Paris Fashion Week, March.  Although technical details weren't provided, based on the realistic "jiggle" achieved, the "garment" may have included "ballistics gel" in the critical elements.

Especially since the ratio of fabric to flesh on red carpets shrunk during the last two decades, critics and the public alike have become jaded, shock and surprise harder to achieve on the catwalk.  However, at Paris Fashion Week 2025, what had become elusive with fabric and flesh and was achieved with latex, a male model appearing in a gender-bending top during the presentation of Dutch designer Duran Lantink's (b 1998) fall 2025 Duranimal collection.  What turned out to be the most publicized item in the Palais de Tokyo Room wasn’t the collection of pieces featuring bold animal prints with striking silhouettes, but one never to be in any high street catalogue, a flesh-colored torso with a pair of realistic, jiggling, prosthetic breasts worn by male model Chandler Frye.

Tit for tat: Mica Argañaraz strutting in T-shirt.

What the male mode wore was, in design terms, a crop top, albeit one with untypical choices in material and construction, and the companion piece was worn by model Mica Argañaraz: a T-shirt also in skin-tone latex, molded in the form of an idealized male torso, something like those the sculptors of Antiquity once carved in marble.  Both were on display on a catwalk which snaked around a maze of cubicles filled with headset-wearing workers shuffling and stapling papers, something which may have had some thematic connection which what was on show although no explanation was provided.  While the T-shirt seems to have provoked few comments, there were criticisms of the latex boobs, usually in some way an objection to the objectification of the female body (something generally thought a battle long lost) while others denied this could possibly thought “fashion” which was about as pointless an observation as any of those by the many who over the years have dismissed porcelain urinals, drip paintings and such as “not art”.  When asked about the use of a woman’s body as a “costume” (nobody asked about the make torso), Mr Lantink replied it was “…about cosplay, it’s playing with bad taste, it’s about form. Every season, we’re trying to sort of surprise ourselves with how can we change an original piece into something that we find interesting”, adding: “And we’re gonna do whatever the fuck we want because we’re free.”

On the catwalk: Lindsay Lohan in a Heart Truth Red Dress during Olympus Fashion Week, Fall, 2006, The Tent, New York City.

How to walk like catwalk model

Traci Halvorson of Halvorson Model Management (HMM) in San Jose, California, has written a useful guide for those wishing to learn the technique of walking like a catwalk (increasingly now called the gender-neutral “runway”) model.  Although walking on a wide, stable flat surface, in a straight line with few other instructions except “don’t fall over”, doesn’t sound difficult, the art is actually a tightly defined set of parameters which not all can master.  Some models who excel at static shots and are well-known from their photographic work can’t be used on a catwalk because their gait, while within the normal human range, simply isn’t a “catwalk walk”.  It’s thus a construct, of clothes, shoes, style and even expression and catwalk models need to be adaptable, able to achieve essentially the same thing whether in 6-inch (150 mm) high stilettos or slippery-soled ballet flats; it’s harder than it sounds and as all models admit, nothing improves one’s technique like practice.

(1) The facial expression.  It sounds a strange place to start but it’s not because if the facial expression is unchanging it means it’s easier to focus on everything else, the rational being that humans use their range of facial expression to convey emotion and attitude but this all has to be neutralized to permit the photographers (paradoxically the audience is less relevant) to capture what are defined “catwalk” shots.  Set the chin to point slightly down though don’t hang the head; the angle should be almost imperceptible and it recommended to imagine an invisible string attached to the top of the head holding the chin in its set position.

(2) Do not smile.  Catwalk models do not smile because it draws attention away from the product although this does not mean looking miserable or unhappy; instead look “serious” and this usually is done by perfecting what is described as a “neutral” expression, one which would defy an observer being able to tell whether the wearer is happy or sad.  To achieve this, the single most important aspect is to keep the mouth closed in a natural position, something like what is recommended for a passport photograph and ask others to judge the look but as a note of caution, there will be failures because some girls just look sort of happy no matter what.  In most of life, this will be of advantage so a career other than the catwalk will beckon.

(3) On the catwalk, keep the eyes focused straight ahead.  This not only makes walking easier but also self-imposes a discipline which will help maintain the static facial expression.  Because the eyes are focused straight-ahead, it will stop the head moving and the look will be the desired one of alertness and purposefulness.  Some models recommend imagining a object moving in front of them and focus on that and in the situations where there’s a procession on the catwalk, it’s possible usually to fixate on some unmoving point on the model ahead.

(5) Don’t fall over.  It’s an obvious point but it does happen and usually, shoes are responsible, either because the nature of the construction has so altered the model’s centre of gravity or there's  contact between footwear and some flowing piece of fabric, either one’s own or one in the wake of the model ahead.  There is no better training to avoid “catwalk stacks” than to practice in a wide variety of shoe types.

(5) If possible, arrange a replica catwalk on which to practice, it need only to be a few paces long and arranged so the walk is towards a full-length mirror.  For side views, film using a carefully positioned camera and compare the result with footage of actual catwalk models at work.  If possible, work in pairs or a group because you’ll hone each other’s techniques but remember this is serious business and criticism will need to be frank; feelings may need to be hurt on the walk to the catwalk.

(6) Stand up straight, imagining the invisible string holding the head in place being also attached to the spine.  Keep the shoulders back but not unnaturally so, posture needs to be good but not stiff or exaggerated and a good posture can to some extent compensate for a lack of height.  Again, this needs to be practiced in front of a mirror and practice will improve the technique, the object being to stand straight while looking relaxed and comfortable.

(7) Perfecting the actual catwalk walk will take some time because, although it looks entirely natural when done by models, it’s not actually the “natural” way most people walk.  To train, begin purely mechanistically, placing one foot in front of the other and walking with (comfortably) long strides, the best trick being to mark a line on the floor with chalk and imagine walking on a rope, keeping one foot in front of the other, allowing the hips slightly to move from side to side; the classic model look.  With sufficient practice, what designers call the model’s “strut” will evolve and in conjunction with the other techniques, there’ll be a projection of assuredness and confidence.

(8) However, the hips need symmetrically and slightly to move, not swing.  Catwalk models are hired as platforms for clothes within a narrow dimensional range and this includes not only the cut of the fabric but also the extent it is required to move as the body moves and motion must not be exaggerated.  When practicing this, again it’s preferable to work in pairs or groups.

How it's done.  Catwalk models need to look good coming or going.

(9) Limit the movement of the arms when walking.  Let the arms hang at the sides with the hands relaxed, the swing of the limbs sufficient only to ensure the look is not unnaturally stylized and certainly nothing like that of most people on the street.  Many report when first practicing that there’s a tendency for the hands to clench into fists and that’s because of the discipline being imposed on other body parts but from the start, ensure the hands are relaxed, loosely cupped and with a small (natural) gap (something like ¼ inch (5-6 mm) between the fingers.  Allow the arms slightly to bend and they’ll sway (just a little) with the body.

(10) Practice specifically for the occasion.  Just as even the best tennis players have to practice on grass if they’ve just come off playing on clay or hard-courts, at least an hour before an actual catwalk session should be spent practicing in the same style of shoes as will be worn for the session(s).  This applies even if wearing something less challenging like flats because the change in weight distribution and the resultant centre of gravity is profound if the last few days have been spent in 6 inch (150 mm) heels.     

(11) Practice with different types of music because the catwalk walk really is an exercise in rhythm and if one can find a piece which really suits and makes the walk easier to perfect, if it’s possible to imagine that while on the catwalk, that’s good although sometimes there’s music at the shows and not all can focus on what’s in the head while excluding what’s coming through the speakers.

Traci Halvorson's instructions were of course aimed at neophytes wishing to learn the basic technique but among established models there are variations and the odd stake of the individualistic, the most eye-catching of which is the "fierce strut", a usually fast-paced and aggressive march down the catwalk while still using the classic one-foot-in-front-of-the-other motif which so defines the industry.  It's thus not quite Nazi-style goose-stepping or even the hybrid step used most enthusiastically by the female soldiers in the DPRK (North Korean) military but it's clearly strutting with intent.

Recent fierce struts on the catwalk (runway).

Batwing

Batwing (pronounced bat-wing)

(1) In zoology, the wing of a bat (and, informally, related creatures).

(2) In entomology, several South or Southeast Asian species of tailless dark swallowtail butterflies in the genus Atrophaneura.

(3) An object or design formed or shaped in a way resembling the extended wing of a bat.

(4) In architecture, as “batwing doors”, pairs of swinging doors which typically do not lock nor cover the full vertical range of the doorway (leaving a large gap at the top and bottom), common as entrances to commercial kitchens and in bars.  It was the US industry in the mid-1950s which adopted “batwing doors” to replace “saloon doors” because there was some “middle class resistance” to the association with such establishments; it was a in time which rising prosperity had made mass market interior decorating a thing, hence the re-branding.

(5) In fashion, a garment or part of a garment resembling or conceived of as resembling the wing of a bat, applied usually to a loose, long sleeve (some flaring out, some with a tight wrist and known also as the “magyar sleeve”) but also to hem-lines.

(6) In hairdressing, a variation of the pigtail (in which the tied hair extends from the scalp at close to 90^o before cascading) in which the tied hair extends from the scalp upwards at an acute angle before cascading.  Batwings can be single ties but more typically appear symmetrically to the sides, in emulation of the wings of a bat.

(6) In physical training, an exercise routine or posture on the stomach wherein a dumbbell row or lateral raise is performed.

(7) In slang, an area of flabby fat under a person's arms (known in some places as “tuck shop lady’s arms).

(8) In automotive design, a type of rear fin which extended laterally rather than upwards.

1955–1960: The construct was bat + wing.  Bat (in the sense of the small flying mammal) dates from the late 1570s and is thought to be from a Scandinavian source, possibly the dialectal Swedish natt-batta, a variant of the Old Swedish natt-bakka (night-bat).  It replaced the Middle English bake & bak, from balke & blake, also from a Scandinavian source.  The related Nordic forms included the dialectal Swedish natt-blacka and the Old Icelandic ledhr-blaka (bat), the construct being ledhr (skin, leather) + blaka (flutter) and understood in the vernacular as “leather flapper”, the sense something like the later Old Danish nathbakkæ (literally “night-flapper”).  The earlier use (to describe a club, staff etc) dated from the turn of the thirteenth century and was from the Middle English noun bat, bot & batte, from the Old English batt which may have been from Celtic (the Irish & Scots Gaelic bat & bata meant “staff, cudgel”.  The Middle English verb batten, came partly from the noun, influenced by the Old French batre (batter).  Wing dates from the mid-twelfth century and was from the Middle English plural nouns winge & wenge, from the Old Danish wingæ (the other Nordic forms including the Norwegian & Swedish vinge and the Old Norse vǣngr (wing of a flying animal, wing of a building)).  In the Old Norse, the architectural sense of “a building’s wing” extended to nautical use, a vængi a “ship's cabin”.  The Nordic forms came from the Proto-Germanic wēingijaz, from the primitive Indo-European hweh- (to blow (hence the connection with “flapping” & “wind”).  The cognates included the Danish vinge (wing), the Swedish vinge (wing) and the Icelandic vængur (wing).  In English, “wing” came to replace the Middle English fither, from the Old English fiþre, from the Proto-Germanic fiþriją), which merged with the Middle English fether (from Old English feþer, from Proto-Germanic feþrō).  The spellings bat wing & bat-wing are also used.  Batwing is a noun and adjective, batwinged & batwingish are adjectives; the noun plural is batwings.

Gothic Batwing Sleeved Mermaid Long Dress by Punk Design (left) and Gothic Black A-Line wedding dress with leg Slit, batwing sleeves and bat hem by Wulgaria Couture (right).  Goths like batwings (usually in black with the odd splash of purple), the flowing sleeves often paired with leather or the more accommodating “wet latex look”.  Wulgaria Couture describe the A-Line style as a “wedding dress in gothic black” but it’s available also in a blood red for those non-Goths who like the batwing aesthetic.

Alfa Romeo BAT 5 (1953, left), BAT 7 (1954, centre) and BAT 9 (1955, right), designed by Franco Scaglione (1916–1993).

The Alfa Romeo BAT (Berlina Aerodinamica Tecnica, best translated as “exploration of aerodynamic principles in cars”) concept cars were among the most stylistically adventurous (and aerodynamically successful) of the transatlantic movement in the 1950s which focused on applying the lessons learned from progress in aeronautics during World War II (1939-1945).  The tail fin had been seen as early as the 1920s and their role in enhancing straight-line stability was imported directly from aircraft design but on the road they’d tended to be single, upright structures, best remembered from the use in the pre-war Czechoslovakian Tatras, intriguing things which, configured with a rear-mounted V8 engine, at speed needed a “stabilizing fin” more than most.  However, it was in the 1950s, when such publicity was afforded to jet aircraft, rockets & missiles, that designers took a renewed interest in fins & wings.  In the US, they quickly became extravagances, divorced from any functional relationship to fluid dynamics much beyond the merely coincidental but for Europeans, for whom fuel was more expensive and incomes lower, it was understood aerodynamics alone could improve both a vehicle’s economy and its performance.

Batwings: A grey-headed flying fox.

The performance of the trio was, by contemporary standards, remarkable, all able to attain in excess of 200 km/h (125 mph), despite being powered by a relatively small 1.9 litre (115 cubic inch) engine, albeit one fitted with double overhead camshafts (DOHC).  The wings (the BAT acronym for the cars was opportunistic) were just one part on a design which in all aspects was intended to optimize air-flow and although even at the time there were cars with smaller frontal areas, the BATs gained much of their advantage from the lowering of the front coachwork and the drag coefficient (CD) of the three ranged from 0.19-0.23, impressive even today.  It’s on BAT 7 that the batwing motif is most pronounced, the wings extending as a single structure from the base of the A-pillar, at the rear tilting and sweeping in an arc towards the centre-line.  When the metalworkers in the coach-building house first saw the design, their reaction was something like that of the structural engineers on first viewing the “sails” on the blueprints of Jørn Utzon’s (1918–2008) Sydney Opera House but they rose to the occasion.  The design would never have been suitable for mass-production; the famous fins on the US cars of the era were not only simpler structures but also designed in a way which accommodated the relatively “lose” manufacturing tolerances which permitted them being built quickly and at scale.  Perhaps tellingly, BAT 9 appeared with appendages less batwing-like and more attuned to the way Detroit was doing things.

It's the batwings which made BAT 7 the most memorable of the three and in 2008, Carrozzeria Bertone (builders of the original trio) built the Alfa Romeo BAT 11dk prototype, a conceptual rendering in clay, Styrofoam & filler, designed to use the underpinnings of the Alfa Romeo 8C Competizione.  Commissioned by a former owner of BAT 7, the Global Financial Crisis (GFC) scuttled its appearance at the Geneva Motors Show and certainly any prospect of a small production run or even a one-off creation.

Misty was a weekly British comic magazine for girls which, unusually, was found also to enjoy a significant male readership.  Published UK house Fleetway, it existed only between 1978-1980 although Misty Annual appeared until 1986.  The cover always featured the eponymous, raven haired beauty.  Befitting its theme, bats often featured in the artwork.

Lindsay Lohan in Anger Management (2013) demonstrates the batwing (left), defined by the tied hair extending upwards from the scalp before cascading, as distinct from the “pig tail” (centre) which extends from the scalp at close to 90^o before cascading.  Batwings can be single ties (centred or asymmetric) but more typically appear symmetrically to the sides, in emulation of the wings of a bat.  There are also batwing hair clips (right), also called “batwing hair claws” which is more evocative.

Chevrolet Bel Air: 1957 (left), 1958 (centre) and 1959 (right).

The 1959-1960 Chevrolets quickly picked up the nickname “batwing” and richly it was deserved; there was nothing like them at the time and there’s been nothing since.  The 1959 range actually had a strange and rushed gestation.  The fins on the 1955-1956-1957 cars (the so-called “tri-five Chevies”) had grown upwards in the fashion of the time but the corporation decided something different was needed and for 1958 chose baroque, the embryonic batwings obvious now but it was only when the next year’s model was released they would be understood thus.  The reason the General Motors (GM) 1958 body shape would last only one season was that at time it suffered by comparison with the sleek Chryslers; it was thought frumpy and even bloated and that it was released into that year’s short but sharp recession, didn’t help. The re-design for 1959 had its flaws (many of which (including toning down the batwings) were fixed for 1960) but it could never have been called “frumpy” and the “cats eye” taillights are admired even today.  Still the market didn’t respond as GM would have liked and the batwings soon flew off; by 1963 the Chevrolet was so blandly inoffensive it was being described as “a little bit like every car ever built”.  It proved a great success.

1960 Chevrolet "bubbletop" Impala Sport Coupe (left) and 1963 Ford Consul Capri (right).  On the 1960 Chevrolets, the memorable “cats eye” taillights were replaced by round units, three aside for the top-of-the-line Impala, two for the less expensive Bel Air & Biscayne.

For 1960, Chevrolet made the batwings a little less “batwingish” and the idea travelled across the Atlantic, Ford in the UK applying the scaled-down motif to their Ford Consul Classic (1961-1963) and Consul Capri (1961-1964), the latter a two-door coupé which the company wanted to be thought of as a “co-respondent's car” (ie the sort of rakish design which would appeal to the sort of chap who slept with other men’s wives, later to be named as the “co-respondent” in divorce proceedings).  Whether or not the “batwingettes” played a part isn’t known but neither the Classic nor the Capri were successful.

Heptadecaphobia

Heptadecaphobia (pronounced hepp-tah-dech-ah-foh-bee-uh)

Fear of the number 17.

1700s: The construct was the Ancient Greek δεκαεπτά (dekaepta) (seventeen) + φόβος (phobos).  The alternative form is septadecaphobia, troubling some the purists because they regard it as a Greek-Latin mongrel, the construct being the Latin septem (seven) + deca, from the Latin decas (ten), from the Ancient Greek δεκάς (dekás) (ten) + the Ancient Greek φόβος) (phobos) (fear).  Heptadecaphobia deconstructs as hepta- “seven” + deca (ten) + phobos.  The suffix -phobia (fear of a specific thing; hate, dislike, or repression of a specific thing) was from the New Latin, from the Classical Latin, from the Ancient Greek -φοβία (-phobía) and was used to form nouns meaning fear of a specific thing (the idea of a hatred came later).  Purists use the spelling heptadekaphobia to avid the mix.

There are a variety of theories to account for the Italian superstition which had rendered 17 the national “unlucky number”.  The most accepted is that in Roman numerals 17 is XVII which, anagrammatically, translates to VIXI (Latin for “I have lived” (the first-person singular perfect active indicative of vīvō (to live; to be alive)), understood in the vernacular as “my life is over”.  That would have been ominous enough but Romans noted also that Osiris, the Egyptian god of, inter alia, life, death, the afterlife and resurrection, had died on the 17th day of the month, 17 thus obviously a “death number” to the logical Roman mind and the worst 17th days of the month were those which coincided with a full moon, an intensifier in the same sense that in the West the conjunction leading to a Friday the 13th is so threatening.  Mashing up the numerical superstitions, that 17 is an “unlucky number” shouldn’t be surprising because it’s the sum of 13 + 4, the latter being the most dreaded number in much of East Asia.

Just because a “fear of a number” is listed somewhere as a “phobia” doesn’t mean the condition has much of a clinical history or even that a single case is to be found in the literature; many may have been coined just for linguistic fun and students in classics departments have been set assessment questions like “In Greek, construct the word meaning “fear of the number 71” (the correct answer being “hebdomekontahenophobia”).  Some are well documented such as tetraphobia (fear of 4) which is so prevalent in East Asia it compelled BMW to revise the release strategy of the “4 Series” cars and triskaidekaphobia (fear of 13) which has such a history in the West it’s common still for hotels not to have a thirteenth floor or rooms which include “13”, something which in the pre-digital age was a charming quirk but when things were computerized added a needless complication.  The use of the actual number is important because in such a hotel the “14^th” floor is of course the 13^th (in the architectural sense) but there’s little to suggest there’s ever been resistance from guests being allocated room 1414.

Some number phobias are quite specific: Rooted in the folklore of Australian cricket is a supposed association of the number 87 with something bad (typically a batter being dismissed) although it seems purely anecdotal and more than one statistical analysis (cricket is all about numbers) has concluded there's nothing “of statistical significance” to be found and there’s little to suggest players take the matter seriously.  One English umpire famously had “a routine” associated with the score reaching a “repunit” (a portmanteau (or blended) word, the construct being re(eated) +‎ unit) (eg 111, 222, 333 etc) but that was more fetish than phobia.

No fear of 17: Some Lindsay Lohan Seventeen magazine covers.  Targeted at the female market (age rage 12-18), the US edition of Seventeen is now predominately an on-line publication, printed only as irregular "special, stand-alone issues" but a number of editions in India and the Far East continue in the traditional format. 

Other illustrative number phobias include oudenophobia (fear of 0), (trypophobia (fear of holes) said to sometimes be the companion condition), henophobia (fear of 1) (which compels sufferer to avoid being associated with “doing something once”, being the “first in the group” etc), heptaphobia (fear of 7) (cross-culturally, a number also with many positive associations), eikosiheptaphobia (fear of 27) (a pop-culture thing which arose in the early 1970s when a number of rock stars died messy, drug-related deaths at 27), tessarakontadyophobia (fear of 42) (which may have spiked in patients after the publication of Douglas Adams’ (1952–2001) Hitchhiker's Guide to the Galaxy (1979-1992), enenekontenneaphobia (fear of 99) (thought not related to the Get Smart TV series of the 1960s), tetrakosioeikosiphobia (fear of 420) (the syndrome restricted presumably to weed-smokers in the US), the well-documented hexakosioihexekontahexaphobia (fear of 666), heftakosioitessarakontaheptaphobia (fear of 747) (though with the withdrawal from passenger service of the tough, reliable (four engines and made of metal) Boeing 747 and their replacement by twin-engined machines made increasingly with composites and packed with lithium-ion batteries, a more common fear may be “not flying on a 747”).  Enniakosioihendecaphobia (fear of 911) (presumably, in the US, sometimes a co-morbidity with tetrakosioeikosiphobia or suffered by those with a bad experience with a pre-modern Porsche 911 which, in inexpert hands, could behave as one would expect of a very powerful Volkswagen Beetle) and the rare condition nongentiseptuagintatrestrillionsescentiquinquagintanovemmiliacentumtredecimdeciesoctingentivigintiquattuormiliatrecentiphobia (fear of 973,659,113,824,315) (that one created presumably by someone determined to prove it could be done). There’s also compustitusnumerophobia (fear of composite numbers), meganumerophobia (fear of large numbers), imparnumerophobia (fear of odd numbers), omalonumerophobia (fear of even numbers), piphobia (fear of pi), phiphobia (fear of the golden ratio), primonumerophobia (fear of prime numbers), paranumerophobia (fear of irrational numbers), neganumerophobia (fear of negative numbers) and decadisophobia (fear of decimals).  The marvellous Wiki Fandom site and The Phobia List are among the internet’s best curated collection of phobias.

The only one which debatably can’t exist is neonumerophobia (fear of new numbers) because, given the nature of infinity, there can be no “new numbers” although, subjectively, a number could be “new” to an individual so there may be a need.  Sceptical though mathematicians are likely to be, the notion of the “new number” has (in various ways) been explored in fiction including by science fiction (SF or SciFi) author & engineer Robert A Heinlein (1907–1988) in The Number of the Beast (1980), written during his “later period”.  More challenging was Flatland: A Romance of Many Dimensions by English schoolmaster & Anglican priest Edwin Abbott Abbott (1838–1926) which was published under the pseudonym “A Square”, the layer of irony in that choice revealed as the protagonist begins to explore dimensions beyond his two-dimensional world (in Victorian England).  Feminists note also Ursula K Le Guin’s (1929–2018) The Left Hand of Darkness (1969) in which was created an entirely new numerical system of “genderless" numbers”.  That would induce fear in many.

Lindsay Lohan's cover of Edge of Seventeen appeared on the album A Little More Personal (2005).  Written by Stevie Nicks (b 1948), it appeared originally on her debut solo studio album Bella Donna (1981).

In entymology, there are insects with no fear of the number 17.  In the US, the so-called “periodical cicadas” (like those of the genus Magicicada) exist in a 17 year life cycle, something thought to confer a number of evolutionary advantages, all tied directly to the unique timing of their mass emergence: (1) The predator satiation strategy: The creatures emerge in massive numbers (in the billions), their sheer volume meaning it’s physically impossible for predators (both small mammals & birds) to eat enough of them to threaten the survival of the species. (2) Prime number cycles: Insects are presumed to be unaware of the nature of prime numbers but 17 is a prime number and there are also periodic cicadas with a 13 year cycle.  The 13 (Brood XIX) & 17-year (Brood X) periodic cicadas do sometimes emerge in the same season but, being prime numbers, it’s a rare event, the numbers' least common multiple (LCM) being 221 years; the last time the two cicadas emerged together was in 1868 and the next such event is thus expected in 2089.  The infrequency in overlap helps maintain the effectiveness of the predator avoidance strategies, the predators typically having shorter (2-year, 5-year etc) cycles which don’t synchronize with the cicadas' emergence, reducing chances a predator will evolve to specialize in feeding on periodical cicadas. (3) Avoidance of Climate Variability: By remaining underground for 17 years, historically, periodical cicadas avoided frequent climate changes or short-term ecological disasters like droughts or forest fires. The long underground nymph stage also allows them to feed consistently over many years and emerge when the environment is more favorable for reproduction.  Etymologists and biological statisticians are modelling scenarios under which various types of accelerated climate change are being studied to try to understand how the periodic cicadas (which evolved under “natural” climate change) may be affected. (4) Genetic Isolation: Historically, the unusually extended period between emergences has isolated different broods of cicadas, reducing interbreeding and promoting genetic diversity over time, helping to maintain healthy populations over multiple life-cycles.

In automotive manufacturing, there was nothing unusual about unique models being produced for the Italian domestic market, the most common trick being versions with engines displacing less than 2.0 litres to take advantage of the substantially lower tax regime imposed below that mark.  Thus Ferrari (1975-1981) and Lamborghini (1974-1977) made available 2.0 litre V8s (usually variously in 2.5 & 3.0 litre displacements), Maserati a 2.0 V6 (a 3.0 in the Maserati Merak (1972-1983) although it appeared in 2.7 & 3.0 litre form in the intriguing but doomed Citroën SM (1970-1975)) and Mercedes-Benz created a number of one-off 2.0 litre models in the W124 range (1974-1977) exclusive to the Italian domestic market (although an unrelated series of 2.0 litre cars was also sold in India).

US advertisement for the Renault 17 (1974), the name Gordini adopted as a "re-brand" of the top-of-the-range 17TS,  Gordini was a French sports car producer and tuning house, absorbed by Renault in 1968, the name from time-to-time used for high-performance variants of various Renault models.

One special change for the Italian market was a nod to the national heptadecaphobia, the car known in the rest of the world (RoW) as the Renault 17 (1971-1979) sold in Italy as the R177.  For the 17, Renault took the approach which had delivered great profits: use the underpinnings of mundane mass-produced family cars with a sexy new body draped atop.  Thus in the US the Ford Falcon begat the Mustang and in Europe Ford got the Capri from the Taunus/Cortina duo.  Opel’s swoopy GT was (most improbably) underneath just a Kadett.  It wasn’t only the mass-market operators which used the technique because in the mid 1950s, Mercedes-Benz understood the appeal of the style of the 300 SL (W198, 1954-1957) was limited by the high price which was a product of the exotic engineering (the space-frame, gullwing doors, dry sump and the then novel mechanical fuel-injection), the solution being to re-purpose the platform of the W120, the small, austere sedan which helped the company restore its fortunes in the post-war years before the Wirtschaftswunder (economic miracle) was celebrated in 1959 with the exuberance of the Heckflosse (tailfin) cars (1959-1968).  On the W120 platform was built the 190 SL (W121, 1955-1963), an elegant (it not especially rapid) little roadster which quickly became a trans-Atlantic favourite, particularly among what used to be called the “women’s market”.

Only in Italy: The Renault 177.

Using the same formula, the Renault 17 was built on the underpinnings of the Renault 12, a remarkably durable platform, introduced in 1979 and, in one form or another, manufactured or assembled in more than a dozen countries, the last not produced until 2006.  Like the Ford Capri, the 17 was relatively cheap to develop because so much was merely re-purposed but for a variety of reasons, it never managed to come close to match the sales of the wildly successful Ford, front wheel drive (FWD) not then accepted as something “sporty” and Renault's implementation on the 17 was never adaptable to the new understanding of the concept validated by FWD machines such Volkswagen’s Sirocco GTi & Golf GTi.  Like most of the world, the Italians never warmed to the 17 but presumably the reception would have been even more muted had not, in deference to the national superstition about the number 17, the name been changed to “Renault 177”, the cheaper companion model continuing to use the RoW label: Renault 15.

Philadelphus

Philadelphus (pronounced fil-ah-del-fiss)

(1) Any shrub of the temperate genus Philadelphus, cultivated for their strongly scented showy flowers (family Hydrangeaceae).

(2) As Philadelphus coronaries (mock orange), a deciduous, early summer-flowering shrub with arching branches that bear racemes of richly scented, cup-shaped, pure white flowers in profusion with finely toothed, bright green foliage.  The plant is grown for its ornamental value.

(3) A male given name with origins in the Ancient Greek.

1600s (in botanical use): From the Ancient Greek Φιλάδελφος (Philádelphos) (brotherly love) & philadelphon (loving one’s brother).  Philadelphus is a proper noun.

Philadelphus coronaries (mock orange) in flower.

The mock orange plant has long been valued for its decorative and functional properties.  Thomas Jefferson (1743–1826; US president 1801-1809) was a keen gardener and horticulturalist of some note and on 19 April 1807 noted in his “garden book”: “Planted 9 Philadelphus coronarium, Mock orange in the 4 circular beds of shrubs at the 4 corners of the house.”  Although the origin is uncertain, biologists suspect the strong growing, medium-sized shrub is native either to northern Italy, Austria & Central Romania or Central & North America and Asia; in Europe & North America it has been cultivated at least the sixteenth century.  Before modern standards of taxonomy were codified in the eighteenth century, the plant was classified under the genus Syringa (covering the species of flowering woody plants in the olive family or Oleaceae (commonly called lilacs) and a typically comprehensive description was recorded by Lady (Jean) Skipwith (circa 1748–1826), a Virginia plantation owner and manager still celebrated among botanists for her extensive garden, botanical manuscript notes, and library, the latter reputedly the largest at the time assembled by a woman.  Lady Skipwith called the plant a “Syringa or mock orange” while the US naturalist, explorer & explorer William Bartram (1739–1823) preferred the former, reflecting a scientist’s reverence for anything Greek or Latin.  Syringa was from the stem of the Latin syrinx, from the Ancient Greek σῦριγξ (sûrinx) (shepherd's pipe, quill), the name reflecting the use of the plant's hollow stem to make pipes, flutes & tube.  In modern use, “Mock Orange” tends to be preferred by most, the name derived from the fragrance of the flowers being so reminiscent of orange blossoms.  The origin of the scientific name “Philadelphus” (first applied in the early seventeenth century) is attributed usually to being a tribute to Ptolemy II Philadelphus (Ptolemaîos Philádelphos (Πτολεμαῖος Φιλάδελφος in the Ancient Greek) 309-246 BC, pharaoh (king) of Ptolemaic Egypt (284-246 BC), said to be a keen gardener (which can be translated as “he kept many slaves to tend his gardens”).

The literal translation of the Greek philadelphon was “loving one’s brother”, something used in the sense of “brotherhood of man” as well as when referring to family relationships.  For the pharaoh, the use was a little more nuanced because, after some earlier marital problems, he married his older sister Arsinoe II (316-circa 269 BC).  This appalled the Greeks who condemned the arrangement as incestuous and the couple thus picked up the appellation Philadelphoi (Φιλάδελφοι in the Koinē Greek (sibling-lovers)).  Historians however are inclined to be forgiving and suggest the union was purely for administrative convenience, Egyptian political & dynastic struggles as gut-wrenching as anywhere and there’s no evidence the marriage was ever consummated.  Just to make sure there was the appropriately regal gloss, the spin doctors of the royal court circulated documents citing earlier such marriages between the gods (such as Zeus & Hera).  It certainly set a precedent and the intra-family model was followed by a number of later Ptolemaic monarchs and the practice didn’t end.  The scandalous marriage of Heraclius (circa 575–641; Byzantine emperor 610-641) to his youthful niece Martina resulted in her becoming “the most hated woman in Constantinople” and it was a union certainly consummated for “of the nine children she bore her husband, only three were healthy, the rest either deformed or died in infancy.”

The Philadelphi corridor

The Latin proper noun Philadelphi was the genitive/locative singular of Philadelphus.  In 2024 use spiked because the Israel Defense Forces (IDF) use “Philadelphi Corridor” as military code for the narrow (14 km (9 miles) long & 100 m (110 yards) wide) stretch of land used to separate the Gaza Strip from Egypt; it runs from the Mediterranean coast to the Kerem Shalom crossing with Israel and includes the Rafah crossing into Egypt.  The IDF created the corridor (from Gaza territory) as a “buffer zone” (or “cordon sanitaire”), ostensibly to prevent the Hamas, the PIJ (Palestine Islamic Jihad) and others smuggling weapons and other contraband into Gaza through a remarkable network of underground tunnels.  The corridor assumed great significance after Israel's withdrawal from the Sinai Peninsula in 1982 and later after its disengagement from Gaza in 2005; it has long been among the more contested spaces in the Middle East.  According to the IDF, the term “Philadelphi Corridor” was allocated during a routine military planning conference and the choice was wholly arbitrarily with no historical or geographical significance related to the region or any individual.

Just because a military say a code-name has no particular meaning doesn’t mean that’s true; the IDF is no different to any military.  The most obvious possible inspiration for the “Philadelphi corridor” was the Egyptian pharaoh Ptolemy II Philadelphus but one influence may have been cartographic, the geographic shapes of the Gaza Strip (left) and the US city of Philadelphia, Pennsylvania (right) quite similar and were the monstrosities Northwest, West & Southwest Philadelphia to be annexed by adjacent counties, the shapes of the two would be closer still.  

Lindsay Lohan in Philadelphia, 2012.

The Philadelphi corridor has assumed a new importance because Benjamin Netanyahu (b 1949; Israeli prime minister 1996-1999, 2009-2021 and since 2022) has added Israeli control of it to his list of pre-conditions for any ceasefire in negotiations between his government and the Hamas.  It was designated as a demilitarised border zone after the withdrawal of Israeli settlements and troops from Gaza in 2005, prior to which, under the terms of Israel’s Camp David peace treaty with Egypt (1979), the IDF had been allowed to maintain limited troop formations in corridor but without heavy weapons or heavy armour.  Old Ariel Sharon (1928–2014; prime minister of Israel 2001-2006) arranged the Israeli withdrawal from Gaza subsequently forming the Kadima (Forward) political party because he could persuade the Likud (The Consolidation) party to follow his vision.  Very much a personal vehicle for Mr Sharon, Kadima did not survive his incapacitation from a stroke while the Likud fell into the hands of Mr Netanyahu.  Following the Israeli withdrawal, responsibility for the corridor’s security fell to Egypt and the Palestinian Authority, this maintained until the Hamas took control of Gaza in 2007; it was seized by Israel in May 2024 as the IDF’s Gaza ground offensive extended into Rafah.

Over the years, the tunnel complex has proved a remarkably effective means by which to facilitate cross-border smuggling of weapons, other materiel, fuel and a variety of stuff including food, medicine and consumer goods, despite many attempts by the IDF and Egyptian authorities to end the traffic, the latter perhaps a little less fastidious in their endeavours.  The tunnels are impressive pieces of civil engineering, including electricity, ventilation systems, air-conditioning and communications facilities; some are sufficient large to allow heavy trucks to pass and there has long been speculation about the extent to which financial and logistical support for tunnel construction, maintenance & repair is channelled from the Gulf Arab states.  In Cairo, the government viewed the IDF’s seizure of the corridor with some alarm and remain a “status quo” power, insistent that an ongoing Israeli presence will “endanger” the Camp David peace treaty, no small matter because the “ripple effect” of the 1979 agreement had profound consequences in the region.

Pointing the way: Mr Netanyahu (left) explains the Philadelphi corridor (right).      

Still, Mr Netanyahu has made clear he intends to maintain a military presence in the corridor (including the Rafah crossing) and that remains an unnegotiable condition for a ceasefire with the Hamas; opposition to this stance has come from Cario, the Hamas and some of the third parties involved in the negotiation.  In Tel Aviv, that would not have been unexpected but there is now an increasingly persistent protest movement among Israeli citizens, the allegation being the prime-minister is cynically adding conditions he knows the Hamas will be compelled to reject because as long as the war continues, he can remain in office and avoid having to face the courts to answer some troubling accusations pre-dating the conflict.  Mr Netanyahu responded to this criticism by saying as long as the Hamas remained a threat (later refined to “as long as Hamas remained in control of Gaza”), the offensive needed to continue.  One of the great survivors of Middle East politics, Mr Netanyahu recently assured the more extreme of his coalition partners (described as “right-wing” which, historically, is misleading but descriptive in the internal logic of Israeli politics) by engineering a vote in cabinet binding Israel to retaining control of the corridor.  Despite this, opposition within the cabinet to the ongoing “moving of the goalposts” to prevent any possibility of a ceasefire is said to be growing.  The opposition accused the prime-minister of being more concerned with placating the extremists in his government than securing the release of the remaining hostages seized by the Hamas in the 7 October 2023 attack and left unstated but understood by implication was the message Mr Netanyahu regards them as the “collateral damage” in his manoeuvres to avoid the courts.