英语词源字典 - 在线词源网站

maneuver (n.): "planned movement of troops or warship," 1758, from French manoeuvre "manipulation, maneuver," from Old French manovre "manual labor" 13c.), from Medieval Latin manuopera (source of Spanish maniobra, Italian manovra), from manuoperare "work with the hands," from Latin manu operari, from manu, ablative of manus "hand" (see manual (adj.)) + operari "to work, operate" (see operation). The same word had been borrowed from French into Middle English in a sense "hand-labor" (late 15c.). General meaning "artful plan, adroit movement" is from 1774. Related: Maneuvers.
mechanic (n.): "manual laborer," late 14c., from Latin mechanicus, from Greek mekhanikos "an engineer," noun use of adjective meaning "full of resources, inventive, ingenious" (see mechanic (adj.)). Sense of "one who is employed in manual labor, a handicraft worker, an artisan" (chief sense through early 19c.) is attested from 1560s. Sense of "skilled workman who is concerned with making or repair of machinery" is from 1660s, but not the main sense until the rise of the automobile.
roustabout (n.): "deck hand, wharf worker," 1868, perhaps from roust + about. But another theory connects it to British dialect rousing "rough, shaggy," a word associated perhaps with rooster. With extended senses in U.S., including "circus hand" (1931); "manual laborer on an oil rig" (1948).
teamwork (n.): also team-work, 1828 in the literal sense, "work done by a team of horses, oxen, etc." (as distinguished from manual labor), from team (n.) + work (n.). Attested by 1909 in the extended sense.
working (adj.): late 14c., "active, busy," past participle adjective from work (v.). From 1630s as "engaged in physical toil or manual labor as a means of livelihood." Working class is from 1789 as a noun, 1839 as an adjective. Working-day is from late 15c.; working man is by 1816.