порывистость

From LSJ

νῦν δ' ἐχθρὰ πάντα, καὶ νοσεῖ τὰ φίλτατα (Euripides' Medea 16) → but now their love is all turned to hate, and endearment withers

Source

Russian > Greek

σφοδρότης, προπέτεια, προθυμία