в расцвете сил

From LSJ

τράγος γένειον ἆρα πενθήσεις σύ γε → you, goat, will mourn your vanished beard | you will mourn your beard like the goat in the proverb

Source

Russian > Greek

νεᾶνις, νεῆνις, νῆνις, νεαρός