Abbott-Smith Manual Greek Lexicon
εὐκαιρέω (G2119)
3 *† εὐκαιρέω , -ῶ (= cl., εὖ σχολῆς ἔχειν ; used by Polyb. and Philo; cf. Rutherford, NPhr. 205; MM, Exp. , xiv), to have leisure or opportunity I Co 16:12 ; c. inf., Mk 6:31 ; seq. εἰς , to devote one's leisure to , Ac 17:21 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain