Dictionary entry

ἔναντι

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ἔν-αντι

adv.,

a κοινή word (MM, Exp., xii),

before; as prep., c. gen.: Lk 1:8, Ac 7:10 (WH, ἐναντίον), Ac 8:21.†