ἐλέγχω
[in LXX chiefly for יָכַח hi.;]
1. in Hom., to treat with contempt.
2. to convict: c. acc, Mt 18:15 (RV,show him his fault), Tit 1:9; seq. περί, Jo 8:4616:8, Ju 15; pass., Ja 2:9.
3. to reprove, rebuke: I Ti 5:20, II Ti 4:2, Tit 1:132:15, Re 3:19; pass., seq. περί, Lk 3:19; ὑπό, He 12:5(LXX).
4. 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)