Abbott-Smith Manual Greek Lexicon
ἔξ-εστι (G1832)
31 ἔξ-εστι ( εἰμί ), impers. verb ., it is permitted, lawful : Mk 2:24 , Ac 8:37 (R, mg.), I Co 10:23 ; c. inf., Mt 12:2 , 10 , 12 14:4 15:26 19:3 22:17 27:6 , Mk 3:4 12:14 , Lk 6:2 , 9 14:3 , Jo 5:10 ; seq. acc., Mk 2:26 , Lk 6:4 20:22 ; c. dat. pers. et inf., Mt 20:15 , Mk 6:18 10:2 , Jo 18:31 , Ac 16:21 21:37 22:25 (inf. understood), I Co 6:12 ; ἐξόν (sc. ἐστί ), Ac 2:29 , II Co 12:4 ; ἐξὸν ἦν , Mt 12:4 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain