strenua

From LSJ

Φίλιππον ἐπιστῆσαι τοῖς πράγμασι τούτοις → let Philip have a hand in the business, surrender control to Philip

Source

Latin > French (Gaffiot 2016)

(1) strēnŭa, æ, f., c. strena : CIL 6, 10234, 8.

Latin > German (Georges)

strēnua, s. strena.