поскольку

From LSJ

λύπης ἰατρός ἐστιν ὁ χρηστὸς φίλος → a true friend is grief's physician, a worthy friend is a physician to your pain

Source

Russian > Greek

γε, καθότι, κατότι, ὅσγε, ὅσον, ὡσπεροῦν, , ὁπότε, ὅπου