εὐβόλως

From LSJ

κεντέω τὸν πῶλον περὶ τὴν νύσσαν → of impetuous haste, goad the foal around the turning post

Source

Russian (Dvoretsky)

εὐβόλως: удачным броском, т. е. счастливо (εὐ. ἔχειν Aesch. - v. l. εὐβούλως).