horsyoudaoicibaDictYouDict[hors 词源字典]
hors: hors d’oeuvre [18] In French, hors d’oeuvre means literally ‘outside the work’ – that is, ‘not part of the ordinary set of courses in a meal’. The earliest record of its use in English is in the general sense ‘out of the ordinary’ (‘The Frenzy of one who is given up for a Lunatick, is a Frenzy hors d’ oeuvre … something which is singular in its kind’, Joseph Addison, Spectator 1714), but this did not survive beyond the 18th century.

Alexander Pope, in his Dunciad 1742, was the first to use the word in its modern culinary sense. (French oeuvre ‘work’, incidentally, comes from Latin opera ‘work’, source of or related to English copious, manoeuvre, opera, operate, and opulent.)
=> d'oeuvre, copious, manoeuvre, manure, opera, operate, opulent[hors etymology, hors origin, 英语词源]