Ask at the forum if you have an Ancient or Modern Greek query!

σαωθῆναι

From LSJ

Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at

Menander

French (Bailly abrégé)

inf. ao. Pass. de σαόω.