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δουρί

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

French (Bailly abrégé)

dat. sg. épq. de δόρυ.

Russian (Dvoretsky)

δουρί: эп. dat. к δόρυ.