Dictionary entry

νέφος

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

νέφος, -ους, τό,

[in LXX for עָב, שַׁחַק, עָנָן;]

a mass of clouds, a cloud (cf. νεφέλη); metaph. (as in Hom., Hdt., al.), of a dense throng: He 12:1.†