ἀποτελείωσις
From LSJ
μὴ τὴν ὄψιν καλλωπίζου, ἀλλ' ἐν τοῖς ἐπιτηδεύμασιν ἴσθι καλός → Don't beautify your face, but be beautiful in your habits (Thales, in Diog. Laertius 1.37)
English (LSJ)
-εως, ἡ, bringing to perfertion, Plu.Nob.7.
Spanish (DGE)
-εως, ἡ perfeccionamiento Plu.Nob.7.