Tank

Tank (pronounced tangk)

(1) A large receptacle, container, or structure for holding a liquid or gas.

(2) A natural or artificial pool, pond, or lake (a now rare British and US dialectical form).

(3) A light-proof container inside which a film can be processed in daylight; any large dish or container used for processing a number of strips or sheets of film.

(4) In the military, an armored, self-propelled combat vehicle, armed with cannon and machine guns and moving on a caterpillar tread.

(5) Slang term for a prison cell or enclosure for more than one occupant, as for prisoners awaiting a hearing.

(6) In fashion, as tank top, a type of sleeveless shirt.

(7) To do poorly or rapidly to decline rapidly; to fail.  In competitive sport (as tanking), intentionally to fail.

(8) As belly tank racer, a specialised class of motorsport using vehicles constructed using WWII surplus auxiliary under-belly aircraft fuel tanks.

1610-1620: A Portuguese import from India, from the Gujarati Hindi ટાંકી (tānkh & ṭāṅkī) (artificial lake; cistern, underground reservoir for water) or the Marathi टाकी (ṭākī, tanken & tanka), the Indian forms possibly from the Sanskrit tadaga-m (pond, lake pool) and reinforced in the later (1680s) sense of "large artificial container for liquid" by the Portuguese tanque (reservoir), contraction of estanque (pond, literally “something dammed up”), derivative of estancar (hold back a current of water; to dam up; block; stanch, weaken (related to the modern English stanch)), possibly (unattested) from the Vulgar Latin stanticāre (to dam up; block; stanch, weaken).  That’s not conclusive, some sources even suggesting the Portuguese word is the source of those in the Indian dialects.  While, at this distance, cause and effect can be difficult to determine, there were links also to languages in west Asia, and the Gujarati, Marathi and other Indian forms may be compared with the Arabic verb اِسْتَنْقَعَ‎ (istanqaʿa) (to become stagnant, to stagnate).  Synonyms include vessel, container, pond, pool, reservoir, keg, cask, cistern, basin, receptacle, vat, cauldron, tub & aquarium.

#Free Britney tank top.

Tank proved an adaptable verb.  The most obvious sense (to pour or put into a tank) was noted first in 1900 but may earlier have been in oral use.  Perhaps surprisingly, the meaning in sporting competition "deliberately to lose” is documented only from 1976 when it was used in a magazine interview by a female professional tennis player noting the practice among the men on the tour.  It’s been suggested use in boxing may have pre-existed this but no evidence has been offered.  As an adjective, “tanked” has been used to describe the inebriated since 1893.

The meaning "fuel container" is recorded from 1902 and came to be applied to just about every transportation vehicle or platform using liquid or gaseous fuels (cars, trains, aircraft, rockets, missiles etc) and even missiles using solid fuels.  Exceptions seemed to be made for novel technologies such as nuclear-powered devices and hydrogen where “cell” seems preferred if the storage tank is exchangeable although tank is still used for fixed hydrogen storage.  It’s tempting to suspect “fuel tank, gas tank or petrol tank” may have been in use prior to 1902 because oil tank is documented from 1862 but all sources quote 1902 as the first recorded instance although the first use of tanker to describe a ship designed to carry oil or other liquid cargo was in 1900.  The railroad tank-car is attested from 1874 and the slang term for a jail-cell is from 1912.

Lindsay Lohan in Gucci tank top.

Two certainly unrelated aquatic terms emerged about the same time.  The first fish-tanks, for hobbyists or as ornamental objects, were advertised in 1921, a year after the tank suit (one-piece bathing suit), so named because it was worn in a swimming tank, a slang term for swimming pools since circa 1890.  The tank top, an item of women’s casual-wear which blended the styling of the tank suit with a tee-shirt was released in 1968.  The first think-tank (in the sense of a formal research institute) established was the Centre for Behavioral Sciences in Palo Alto, California in 1959.  Think-tank is widely used in colloquial language and the formally established think-tanks have become so associated with political agendas they’ve long habitually needed a modifier (left-wing, liberal, conservative etc).

Another adjectival example has (predictably) ancient roots: the septic tank.  Septic (septic circa 1600) was from the Latin septicus (of or pertaining to putrefaction) from the Greek septikos (characterized by putrefaction) from sepein (make rotten or putrid, cause to rot).  The septic tank is attested from 1902 and was used even in UK rhyming slang as “the septics” to refer to Americans (ie the tank in septic tank rhyming with “yank”).

The sardonic humor of war: March 2022, a young lady from Ukraine in a tank turret.

Johnson and Shipley Belly Tank Racer (1955), Bonneville Salt Flats, circa 1963.

Belly tank racers were built in the post-war years using World War II (1939-1945) era surplus auxiliary under-belly aircraft fuel tanks as bodies, mated to whatever ever engines fell conveniently to hand.  Because the tanks were designed to have optimal aerodynamic properties to minimise drag during flight, they were ideal for straight line speed and most belly tank racers were used for top-speed record attempts at venues like the Bonneville Salt Flats where runs of several miles were possible.  The auxiliary fuel tanks had a profound influence on course the war because they made possible for relatively short-range interceptors like the North American P51D Mustang and ground-attack platform like the Republic P47D Thunderbolt to gain the range required to escort the Allied heavy-bomber fleets to Berlin and other targets in Central Europe.  Not only did this inflict upon the Luftwaffe's dwindling fighter resources losses from which it never recovered, the growing number of raids compelled the Nazis to allocate for home defence large numbers of the 88 mm canons as anti-aircraft flak, meaning they couldn't be used in the anti-tank role on the Eastern Front where the need was so great.  Beyond this, it was the success of the drop-tank (so called because the tanks could be jettisoned as soon as the fuel was expended, thereby reducing weight and gaining aerodynamic advantage) equipped Mustangs & Thunderbirds in decimating the Luftwaffe which meant the Allied control of the skies during the Normandy campaign following the D-Day landings (6 June 1944) was barely contested.  

One outlier is the tankard.  Despite being something used to hold liquids, it’s said to be a phonetic coincidence, tankard apparently unrelated to tank which it long pre-dated.  The origin of tankard (large tub-like vessel) is uncertain, like corresponding Middle Dutch tanckaert.  One suggestion is it’s a transposition of kantard, from the Latin cantharus (a large drinking cup with two handles or a fountain or basin in the courtyard of a church used by worshippers to purify prior to entry) and another ponders a link with the French tant quart (as much as a quarter).  The meaning "drinking vessel" was first noted in the late fifteenth century.

In military use (to describe the armored vehicle moving on continuous self-laying articulated tracks and with mounted canon), the word is from 1915.  The development of the tank proceeded initially under the auspices of the Royal Navy which probably seems strange but happened that way because the organization with the most expertise in the steel fabrication and with the heavy engines needed was the navy which formed the Admiralty Landships Committee to coordinate the operation.  On Christmas eve 1915, the Committee of Imperial Defense, reviewed the proposal for what was then called the "caterpillar machine-gun destroyer" and approved it “for secrecy” being a project of the “Tank Supply Committee”.  Charmingly, it seems both "cistern" and "reservoir" also were proposed a cover names, all based on the physical similarity, early in production, between the armored vehicles and the navy's water-storage tanks; the admirals preferred the punchier, monosyllabic "tank".

First used in action on the Western Front, at Pozieres ridge, on 15 September 1916, the name was quickly picked up by soldiers and has been part of military jargon since, including derived forms: the tank-trap (ditch, sometime with steel structures) attested from 1920, the tank-destroyer (a kind of propelled grenade, later versions including the bazooka and the famous late WWII German Panzerfaust) from 1928 and the tank-buster (ground-attack fighter aircraft with 40mm canon) in 1942.  In 1940, a French general described the English Channel as “a good tank ditch” and suggested he was more optimistic than most of his colleagues that the British could resist invasion.  So it proved, the scale required for the armada assembled in 1944 an indication of just how good a tank ditch it was.

British Mark I, 1916.

The first tank (150 built) used in combat, the Mark I was deployed in an attempt to break the stalemate of trench warfare.  Protected from small arms fire and able to crush barbed wire emplacements, the early tactical use was as a device to clear a pathway for infantry assaults but, although the first effects were dramatic, counter-measures were soon developed and it wasn't until later in the war it became clear the tank had to be used en masse, as a strategic weapon.  The  rhomboidal shape, unusual by later standards, meant the twin 57mm (2.25 inch) canons had to be side mounted; a turret arrangement would have resulted in a centre of gravity which would have rendered the structure unstable.  By war's end, the British had built more than two-thousand tanks but the design which would most influence future development was probably the French FT.

The German's versatile Sturmgeschütz III (StuG III; 1940-1945) self-propelled gun.

Tanks and self-propelled guns (SPG) are visually similar and sometimes confused.  The difference is that a SPG doesn’t have the rotating gun-turret which gives the tank such a flexible range of fire, SPGs having a range of barrel adjustment usually only in the vertical plane.  They are also almost always less armored, often slower and either with lighter or no subsidiary defenses.  In some ways, the SPG may be compared with a tank in the same way a battlecruiser differed from a battleship.

Soviet era T-34 medium tank (1940-1967 (USSR) still in use by some armed forces)).

The T-34 was one of the outstanding tanks of WWII, its superiority over the German Panzers a shock to the invading Wehrmacht in 1941.  It used a powerful 76.2 mm (3 inch) canon which for years out-gunned almost everything ranged against it but perhaps its most clever feature was a simple design trick, armor sloped at a tumblehome 60^o which afforded a high degree of protection against anti-tank weapons, shells tending to glance off rather than penetrate or explode.  Such was its influence, aspects of the concept and details of design were copied by both by allies and the enemy and, early in the war, there was no better battlefield weapon.  The T-34 had a lasting impact on tank design and there's more of a lineal path from the T-34 to the later Panzers, the Panther and the Tigers, than from earlier German designs.

German Panther: PanzerKampfwagen V (1943-1945 (Germany); 1944-1949 (France)).

Neither as heavily gunned or armored as the better known Tiger family, the Panther was rushed into production to counter the Soviet T-34.  It was immediately effective but the lack of time fully to develop the design meant problems of reliability and field maintenance were never wholly solved.  Like any tank, a compromise between cost, performance, range, firepower, mobility and protection, the Panther was fine machine in the circumstances and its performance in open country and for long-range deployments was outstanding.  Had the Panthers been fully developed and available in strategic numbers earlier in the war, many battles might have taken a different path and, like the "revolutionary" submarines developed late in the war, it was a case of what Donald Rumsfeld (1932–2021: US defense secretary 1975-1977 & 2001-2006) would later call a "unknown known"; even in 1939 the Germans had the technology to build the Panther and had resource allocation been more efficient, there would also have been the industrial capacity to produce them at the scale needed for them to be used as a strategic weapon.

Lindsay Lohan in tank top.