ἀρθείην

From LSJ

Τὸ γὰρ περισσὰ πράσσειν οὐκ ἔχει νοῦν οὐδένα → There is no sense in doing things beyond the usual measure

Sophocles, Antigone, 67-68

French (Bailly abrégé)

opt. ao. Pass. de αἴρω.