Abbott-Smith Manual Greek Lexicon
ἔν-νομος (G1772)
2 ** ἔν-νομος , -ον [in LXX: Si, prol. 12 * ;] lawful, legal (MM, Exp. , xiii): Ac 19:39 . Of persons, law-abiding ; under law : ἔ. Χριστοῦ , in relation to Christ, I Co 9:21 (Cremer. 435).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain