ἐμφροσύνη

From LSJ

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

Menander

Spanish (DGE)

-ης, ἡ
prudencia, sensatez, MAMA 10.77.2 (Frigia IV d.C.).