усердно
From LSJ
ὁ μὴ δαρεὶς ἄνθρωπος οὐ παιδεύεται → spare the rod and spoil the child | οne who hasn't been flayed is not being taught | if the man was not beaten, he is not educated | the man, who was not paddled, is not educated
Russian > Greek
μάλα, ἐπισταδόν, ἀπό σπουδῆς, ἐπιμελῶς, ἐνδυκέως, ἐρρωμένως, ἐπιτηδείως, ἐπιτηδέως, ἐξεπίτηδες, συντόνως, ἐντεταμένως, ἀραρότως, συντεταμένως, ἐκτενῶς, ἐκτενέως, ἐσπευσμένως, εὐτόνως, νειόθεν, φιλοπόνως, προθύμως, σπουδαίως, μεγαλωστί