the title of any of the former rulers of Iran
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'shah'Pers šāh, akin to Sans kṣáyati, (he) rules < IE base *kthē(i)-, to acquire, gain power over > Gr kteanon, possessions