D defs.my
Entry 1 sense Webster, 1913

Potentate

/pōt'-ən-tātˌ/ · Po·ten·tate · IPA /ˈpoʊ.tən.teɪt/
01 n. One who is potent; one who possesses great power or sway; a prince, sovereign, or monarch.
  1. 1.
    One who is potent; one who possesses great power or sway; a prince, sovereign, or monarch.
    “The blessed and only potentate.” — 1 Tim. vi. 15.
    “Cherub and seraph, potentates and thrones.” Milton.