toparch
The prince or ruler of a small district, city, or petty state; a petty "king".
[B]y those many kings mentioned in the Old Testament, "thirty and one" in the little land of Canaan, (Joshua xii. 24,) is meant only toparchs, not great kings, but lords of a little dition and dominion; […]
Where it comes from
From the Ancient Greek τοπάρχης (topárkhēs, “ruler of a small district”), from τόπος (tópos, “place”) + -άρχης (-árkhēs, “ruler”). Compare the Latin toparcha and French toparque.
Adapted from the Wiktionary entry toparch (CC BY-SA 4.0).