Kenneth G. Wilson (1923). The Columbia Guide to Standard American English. 1993.
hors doeuvre (n.)
is a French name (plural: hors doeuvres) for appetizer(s), such as are served before or at the beginning of a meal. Pronounce it or-DUHRV (plural: or-DUHRVZ, unless you try it in French (or-DUHVR). See FOREIGN PHRASES; FOREIGN PLURALS.