Lexical Definition

‎μῶμος‎ mōmos (mo'-mos) blemish ^G:N-M
perhaps from ‎μέμφομαι‎

blemish.

• a flaw or blot, i.e. (figuratively) disgraceful person

Abbott-Smith

μῶμος, -ου, ὁ, [in LXX, of physical blemishes: Le 21:17 ff., De 15:21, Ca 4:7, al. (מוּם); of mental defect, Si 20:24, al.;]
1. in cl. poets and late prose, blame, disgrace.
2. In LXX, perh. because of resemblance to מוּם, a physical blemish (cf. ἄμωμος, I Pe 1:19, and v. Hort., in l.); metaph., of licentious persons, II Pe 2:13.†

Abbott-Smith References

Liddell-Scott-Jones

μῶμος, ὁ,

blame, reproach, disgrace, μῶμον ἀνάψαι to set a brand upon one, [Refs 8th c.BC+]: also in later Prose, as [LXX+1st c.BC+]

__2 blemish, [LXX+NT]
__II personified, [Refs 8th c.BC+]

_{LSJ Scripture Refs: LXX.Lev.24.19 ☩ 2Pet.2.13}