Etymology
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retest (v.)

also re-test, "test anew or again," 1863, from re- "back, again" + test (v.). Related: Retested; retesting. As a noun, "a new or repeated test," by 1887.

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thruster (n.)

type of rocket engine, 1962, agent noun; see thrust (n.).

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assay (n.)

mid-14c., "trial, test of quality, test of character," from Anglo-French assai, ultimately from Late Latin exagium "a weighing" (see essay (n.)). The meaning "trial of purity of a metal" is from late 14c.

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blast-off (n.)

"initial burst of energy that launches a rocket into space," 1950, from the verbal phrase; see blast (v.) + off (adv.).

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rpg (n.)

by 1979, initialism (acronym) from role-playing game (see roleplay). As an initialism for rocket-propelled grenade, by 1970.

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SAT (n.)

1961, initialism (acronym) for Scholastic Aptitude Test.

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liftoff (n.)

also lift-off, "vertical take-off of a rocket, etc.," 1956, American English, from the verbal phrase, from lift (v.) + off (adv.). Earlier, of aircraft, simply lift (1879). Figurative use from 1967.

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prelim (n.)

1891, short for preliminary (race, test, event, etc.).

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stanine (n.)

"nine-point scale for test scores," introduced by the U.S. Air Force in 1942, from sta(ndard) + nine.

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arugula (n.)

edible cruciform plant (Eruca sativa) used originally in the Mediterranean region as a salad, 1967, the American English and Australian form of the name (via Italian immigrants), from a dialectal variant of Italian ruchetta, a diminutive form of ruca-, from Latin eruca, a name of some cabbage-like plant (from PIE *gher(s)-uka-, from root *ghers- "to bristle;" for which see horror).

In England, the usual name is rocket (see rocket (n.1)), which is from Italian ruchetta via French roquette. It also sometimes is called hedge mustard.

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