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στερεά

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

Greek Monolingual

η, Ν
βλ. στερεός.

Russian (Dvoretsky)

στερεά: τά мат. кубические величины Plat.