hors d'oeuvre Look up hors d'oeuvre at Dictionary.com
1714, as an adverb, "out of the ordinary," from French hors d'oeuvre, "outside the ordinary courses (of a meal)," literally "apart from the main work," from hors, variant of fors "outside" (from Latin foris; see foreign) + de "from" + oeuvre "work," from Latin opera (see opus). Meaning "extra dish set out before a meal or between courses" attested in English from 1742.