Dictionary entry

μωμάομαι

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

μωμάομαι, -ῶμαι

(< μῶμος), poët. and late prose, [in LXX: Pr 9:7 (מוּם), Wi 10:14, Si 31 (34):18*;]

to find fault with, blame: II Co 8:20; pass., II Co 6:3.†