Greek Language
uέθνάρχης ethnarches (eth-nar'-khace)
–the governor [not king] of a district:
uKJV-- ethnarch.
uethnos (eth'-nos); a race (as of the same habit), i.e. a tribe; specially, a foreign (non-Jewish) one (usually by implication, pagan):
–KJV-- Gentile, heathen, nation, people.
uarche (ar-khay'); (properly abstract) a commencement, or (concretely) chief (in various applications of order, time, place, or rank):
–KJV-- beginning, corner, (at the, the) first (estate), magistrate, power, principality, principle, rule.