kingly
From LSJ
Φίλιππον ἐπιστῆσαι τοῖς πράγμασι τούτοις → let Philip have a hand in the business, surrender control to Philip
adj.
Royal: P. and V. βασιλικός, ἀρχικός, βασίλειος (Thuc. 1, 132), τυραννικύς, V. τύραννος. Fit to rule: B. ἀρχικός. Dignified: P. and V. σεμνός.