μόσσυς

From LSJ

ἕτερος ἐξ ἑτέρου σοφός τό τε πάλαι τό τε νῦν → one gets his skill from another, now as in days of old

Source

Russian (Dvoretsky)

μόσσῠς: ῡνος ὁ = μόσσυν.