ruler

present participle of ἄρχω; a first (in rank or power):--chief (ruler), magistrate, prince, ruler.

from δύναμαι; a ruler or officer:--of great authority, mighty, potentate.

from ἡγέομαι; a leader, i.e. chief person (or figuratively, place) of a province:--governor, prince, ruler.

from an unused root meaning to superintend; a prefect of a province; prince, ruler.

from שָׂרַר; a head person (of any rank or class); captain (that had rule), chief (captain), general, governor, keeper, lord,(-task-)master, prince(-ipal), ruler, steward.