властно
From LSJ
πάντα χωρεῖ καὶ οὐδὲν μένει καὶ δὶς ἐς τὸν αὐτὸν ποταμὸν οὐκ ἂν ἐμβαίης → all things move and nothing remains still, and you cannot step twice into the same stream
Russian > Greek
ἶφι, ἐγκρατῶς, ἐγκρατέως, κυρίως, ἐπιτακτικῶς, παραγγελματικῶς