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career [career 词源字典]: career: [16] Originally, a career was a ‘road or racetrack for vehicles’. Its ultimate source was Latin carrus ‘wheeled vehicle’ (from which we get car), which produced the Vulgar Latin derivative *carāria ‘track for wheeled vehicles’. This passed into English via Provençal carreira, Italian carriera, and French carrière. Its earliest meaning was ‘racecourse’, and hence, by extension, ‘swift course’; the main present-day sense ‘course of someone’s working life’ did not develop until the 19th century, probably owing to renewed influence of French carrière.
=> car[career etymology, career origin, 英语词源]
career (n.): 1530s, "a running (usually at full speed), a course" (especially of the sun, etc., across the sky), from Middle French carriere "road, racecourse" (16c.), from Old Provençal or Italian carriera, from Vulgar Latin *(via) cararia "carriage (road), track for wheeled vehicles," from Latin carrus "chariot" (see car). Sense of "course of a working life" first attested 1803.
pasture (n.): c. 1300, "grass eaten by cattle," from Old French pasture "fodder, grass eaten by cattle" (12c., Modern French pâture), from Late Latin pastura "a feeding, grazing," from Latin pastus, past participle of pascere "to feed, graze" (see pastor). Meaning "land covered with vegetation suitable for grazing" is from early 14c. To be out to pasture "retired" is from 1945, from what was done (ideally) to horses after the active working life.