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Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at
adv.
P. ἀηδῶς.
Distressingly: P. and V. λυπηρῶς.
Ill-temperedly: P. δυσκόλως.