Abbott-Smith Manual Greek Lexicon
ἐκ-τένεια (G1616)
1 **† ἐκ-τένεια , -ας, ἡ ( ἐκτενής ), [in LXX: Jth 4:9 , II Mac 14:38 , III Mac 6:41 * ;] zeal, intentness, earnestness (cf. Deiss., BS, 262): Ac 26:7 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain