assignment (n.)youdaoicibaDictYouDict[assignment 词源字典]
late 14c., "order, request, directive," from Old French assignement "(legal) assignment (of dower, etc.)," from Late Latin assignamentum, noun of action from Latin assignare (see assign). Meaning "appointment to office" is mid-15c.; that of "a task assigned" (to someone) is from c. 1848.[assignment etymology, assignment origin, 英语词源]