Abbott-Smith Manual Greek Lexicon
ἐπει-δή-περ (G1895)
1 * ἐπει-δή-περ conj., forasmuch as ("a stately compound," freq. in cl. and suitable for the formal introduction of Lk): Lk 1:1 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain