серьезно

From LSJ

ἅπαντι δαίμων ἀνδρὶ συμπαρίσταται εὐθὺς γενομένῳ μυσταγωγὸς τοῦ βίου → a spirit assists every man from birth to be the leader of his life

Source

Russian > Greek

ἐσπουδασμένως, σπουδαστικῶς, σπουδαίως