σταυροκουνιάδος

From LSJ

κρεῖττον σιωπᾶν ἐστιν ἢ λαλεῖν μάτην → it's better to keep silence than to speak without reason (Menander)

Source

Greek Monolingual

ο, Ν
αδελφοποιτός του συζύγου.