a primitive root; to tread down, i.e. subjugate; specifically, to crumble off; (come to, make to) have dominion, prevail against, reign, (bear, make to) rule,(-r, over), take.
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.