πολιτάρχης G4173
politárchēs · pol-it-ar'-khace · Noun Masculine
from πόλις and ἄρχω; a town-officer, i.e. magistrate:--ruler of the city.
2 Occurrences in the King James Bible
Acts 17:6And when they found them not, they drew Jason and certain brethren unto the rulers of the city, crying, These that have turned the world upside down are come hither also;
Acts 17:8And they troubled the people and the rulers of the city, when they heard these things.