ἐξουσιαστής
From LSJ
ὁ δ' εὖ ἔρδων θεοὺς ἐλπίδι κυδροτέρᾳ σαίνει κέαρ → but he who does well to the gods cheers his heart with a more glorious hope
English (LSJ)
οῦ, ὁ,
A mighty one, person in authority, LXXIs.9.6(5), Cat.Cod.Astr.5(3).86, PGen.53.2 (iv A.D.).
German (Pape)
[Seite 889] ὁ, der Machthaber, LXX. u. Sp.
Greek (Liddell-Scott)
ἐξουσιαστής: -οῦ, ὁ ἔχων πᾶσαν ἐξουσίαν, θεὸς ἰσχυρός, ἐξουσιαστής, ἄρχων εἰρήνης Ἑβδ. (Ἡσαΐας Θ΄, 6), Σύμμ. ἐν Ἱερ. ΝΑ΄, 46, κλ.