emplacement (n.)youdaoicibaDictYouDict[emplacement 词源字典]
1742, from French emplacement "place, situation," from verb emplacer, from assimilated form of en- "in" (see en- (1)) + placer "to place" (see place (v.)). Gunnery sense attested from 1811.[emplacement etymology, emplacement origin, 英语词源]