умело
From LSJ
μὴ ἐν πολλοῖς ὀλίγα λέγε, ἀλλ΄ ἐν ὀλίγοις πολλά → don't say little in many words, but much in a few words (Stobaeus quoting Pythagoras)
Russian > Greek
δεξιῶς, ἐπισταμένως, τεχνηέντως, τεχνικῶς, πραγματικῶς, γλαφυρῶς, εὐτραπέλως, ἐντέχνως, κατατέχνως, ἑκτικῶς, εὐαγώγως, ἐπιστημόνως, περιφραδέως, δαΐως