Dictionary entry

μαστός

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

μαστός, -οῦ, ὁ,

[in LXX chiefly for שַׁד;]

the breast: pl., Lk 11:2723:29, Re 1:13 (T, μασθοῖς; WH, App., 149; L, μαζοῖς).†