Abbott-Smith Manual Greek Lexicon
ἐλέγχω (G1651)
17 ἐλέγχω [in LXX chiefly for יָכַח hi. ;] in Hom., to treat with contempt . to convict : c. acc, Mt 18:15 (RV, show him his fault ), Tit 1:9 ; seq. περί , Jo 8:46 16:8 , Ju 15 ; pass., Ja 2:9 . to reprove, rebuke : I Ti 5:20 , II Ti 4:2 , Tit 1:13 2:15 , Re 3:19 ; pass., seq. περί , Lk 3:19 ; ὑπό , He 12:5 (LXX) . to expose : Eph 5:11 ; pass., Jo 3:20 , I Co 14:24 (RV reprove , mg. convict ), Eph 5:13 (RV, as 1 Co, l.c., of. AR on Eph 5:11 ; MM, Exp. , xii; cf. ἐξ- , δια-κατ-ελέγχομαι ).† SYN. : ἐπιτιμῶ , expressing simply rebuke, which may be undeserved ( Mt 16:22 ) or ineffectual ( Lk 23:40 ), while ἐλ. implies rebuke which brings conviction (v. Tr., Syn. , § iv)
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain