добровольный
From LSJ
βωμὸν Ἀριστοτέλης ἱδρύσατο τόνδε Πλάτωνος, ἀνδρὸς ὃν οὐδ' αἰνεῖν τοῖσι κακοῖσι θέμις → Aristotle had this altar of Plato set up — Plato, a man whom the wicked dare not even mention in praise
Russian > Greek
ἐθελούσιος, αὐθαίρετος, ἐθελημός, ἐθελητός, ἐθελοντής, θέλεος, αὐτόνομος, ἀπαράκλητος, αὐτεπάγγελτος, ἑκούσιος