Γοργοφόνα

From LSJ

οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well

Source

Russian (Dvoretsky)

Γοργοφόνα: ἡ горгоноубийца, т. е. Афина Eur.

Dutch (Woordenboekgrieks.nl)

Γοργοφόνα -ας, ἡ Γοργώ, φονός Dor., de Gorgodoodster (Athena).