οὐρανίων
From LSJ
ἀγαθοὶ δὲ ἐγένοντο διὰ τὸ φῦναι ἐξ ἀγαθῶν → they were virtuous because they were sprung from virtuous men, virtuous they were because they were sprung from men of virtue
English (Autenrieth)
ωνος: heavenly; as subst., Οὐρανίωνες, the Celestials, i. e. the gods, Il. 5.373, 898.