μονόγαμος
From LSJ
εἰ ἀποκρυπτόντων τῶν Μήδων τὸν ἥλιον ὑπὸ σκιῇ ἔσοιτο πρὸς αὐτοὺς ἡ μάχη καὶ οὐκ ἐν ἡλίῳ → if the Medes hid the sun, the battle would be to them in the shade and not in the sun
English (LSJ)
ὁ,
A one who marries but once, Ptol. Tetr.183, Vett.Val. 120.8.
German (Pape)
[Seite 202] der nur einmal heirathet, nur eine Frau hat, Sp.