Abbott-Smith Manual Greek Lexicon
ἐπεί (G1893)
26 ἐπεί conj. ( ἐπί, εἰ ), when, since ; of time, when, after : Lk 7:1 (Rec., WH, mg.). Of cause, since, because : Mt 18:32 21:46 27:6 , Mk 15:42 , Lk 1:34 , Jo 13:29 19:31 , Ac 13:46 (Rec., WH, mg.), I Co 14:12 , II Co 11:18 13:3 , He 5:2 , 11 6:13 9:17 11:11 ; ἐ. οὖν , He 2:14 4:6 . With ellipsis, otherwise, else : Ro 11:6 , 22 , He 9:26 ; ἐ. ἄρα , I Co 5:10 7:14 ; introducing a question, Ro 3:6 , I Co 14:16 15:29 , He 10:2 (cf. IV Mac 1:33 2:7 2:10 4:24 , 26 ).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain