Толковый словарь английского языка Oxford English Reference - enemy

n. (pl. -ies) 1 a person or group actively opposing or hostile to another, or to a cause etc. 2 a a hostile nation or army, esp. in war. b a member of this. c a hostile ship or aircraft. 3 (usu. foll. by of, to) an adversary or opponent. 4 a thing that harms or injures. 5 (attrib.) of or belonging to an enemy (destroyed by enemy action). Etymology: ME f. OF enemi f. L inimicus (as IN-(1), amicus friend)