μήν genitive, μηνός, ὁ,

[in LXX very frequently for חֹדֶשׁ, Gen.7:11, al.; a few times for יֶרַח ;]

a month: Luk.1:24, 26 1:36, 56 4:25, Act.7:20 18:11 19:8 20:3 28:11, Jas.5:17, Rev.9:5, 10 9:15 11:2 13:5 22:2; pl. of the festival of the new moon (cf. Isa.66:23), Gal.4:10.†

(AS)