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

θᾶττον

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

Greek Monotonic

θᾶττον: Αττ. αντί θᾶσσον.

Russian (Dvoretsky)

θᾶττον: атт. = θᾶσσον.