усердно
From LSJ
Πάντα ταῦτα ἐπείρασα ἐν τῇ σοφίᾳ: εἶπα Σοφισθήσομαι, καὶ αὐτὴ ἐμακρύνθη ἀπ' ἐμοῦ· κτλ. (Εcclesiastes 7:23f., LXX version) → I tried to give proof in wisdom of all those things; I said, I will be wise, but that wisdom was far from me ...
Russian > Greek
μάλα, ἐπισταδόν, ἀπό σπουδῆς, ἐπιμελῶς, ἐνδυκέως, ἐρρωμένως, ἐπιτηδείως, ἐπιτηδέως, ἐξεπίτηδες, συντόνως, ἐντεταμένως, ἀραρότως, συντεταμένως, ἐκτενῶς, ἐκτενέως, ἐν ἐκτενείᾳ, ἐσπευσμένως, εὐτόνως, νειόθεν, φιλοπόνως, προθύμως, σπουδαίως, μεγαλωστί
