γυναικόμασθος
From LSJ
Εἰ μὲν ἐπ' ἀμφοτέροισιν, Ἔρως, ἴσα τόξα τιταίνεις, εἶ θεός (Rufinus, Greek Anthology 5.97) → If, Eros, you're stretching your bow at both equally, then you're a god.
English (LSJ)
or γῠναικόμαστος, ον, A gynecomast, having breasts like a woman: γυναικόμασθον, τό, gynecomastia, abnormal development of the mamma, Gal.19.444, cf. Paul.Aeg.6.46.
German (Pape)
[Seite 510] mit Weiberbrüsten, Paul. Aeg.
Greek (Liddell-Scott)
γῠναικόμασθος: -ον, ἔχων μαστοὺς ὡς τοὺς τῶν γυναικῶν, Γαλην. 2, 273, Π. Αἰγιν. 6, 46.