1590s, "act of crushing, a violent collision or rushing together," from crush (v.). Meaning "thick crowd" is from 1806. Sense of "person one is infatuated with" is first recorded 1884, U.S. slang; to have a crush on (someone) is by 1903.
late 12c., "any vegetable product useful to humans or animals," from Old French fruit "fruit, fruit eaten as dessert; harvest; virtuous action" (12c.), from Latin fructus "an enjoyment, delight, satisfaction; proceeds, produce, fruit, crops," from frug-, stem of frui "to use, enjoy," from suffixed form of PIE root *bhrug- "to enjoy," with derivatives referring to agricultural products. The Latin word also is the source of Spanish fruto, Italian frutto, German Frucht, Swedish frukt-.
Originally in English meaning all products of the soil (vegetables, nuts, grain, acorns); modern narrower sense is from early 13c. Also "income from agricultural produce, revenue or profits from the soil" (mid-14c.), hence, "profit," the classical sense preserved in fruits of (one's) labor.
Meaning "offspring, progeny, child" is from mid-13c.; that of "any consequence, outcome, or result" is from late 14c. Meaning "odd person, eccentric" is from 1910; that of "male homosexual" is from 1935, underworld slang. The term also is noted in 1931 as tramp slang for "a girl or woman willing to oblige," probably from the fact of being "easy picking." Fruit salad is attested from 1861; fruit-cocktail from 1900; fruit-bat by 1869.
mid-14c., "smash, shatter, break into fragments or small particles; force down and bruise by heavy weight," also figuratively, "overpower, subdue," from Old French cruissir (Modern French écraser), variant of croissir "to gnash (teeth), crash, smash, break," which is perhaps from Frankish *krostjan "to gnash" (cognates: Gothic kriustan, Old Swedish krysta "to gnash").
Figurative sense of "to humiliate, demoralize" is by c. 1600. Related: Crushed; crushing; crusher. Italian crosciare, Catalan cruxir, Spanish crujir "to crack, creak" are Germanic loan-words.
"grapefruit-like fruit," 1858, of uncertain origin; apparently related to Latin pomum "fruit; apple" (see Pomona).