autocrat

[ aw-tuh-krat ]

/ ˈɔ təˌkræt /

an absolute ruler, especially a monarch who holds and exercises the powers of government as by inherent right, not subject to restrictions.

a person invested with or claiming to exercise absolute authority.

a person who behaves in an authoritarian manner; a domineering person.

Origin of autocrat

1795–1805; < Greek autokratḗs self-ruling, ruling alone, equivalent to auto- auto-¹ + krat- (stem of krátos power) + -ēs adj. suffix

These reforms were mostly designed to reassure Sunnis and Kurds that Maliki would not become an autocrat.

How Iran and America Can Beat ISIS Together |Ben Van Heuvelen |June 21, 2014 |DAILY BEAST
Nothing humbles an autocrat quite like the need to grub for votes.

Memo: The Aaron Sorkin Model of Political Discourse Doesn't Actually Work |Megan McArdle |April 23, 2013 |DAILY BEAST
There were doubtless some sincere Bulgarian patriots who disliked joining hands with the Autocrat of all the Russias.

The Liberation of Italy |Countess Evelyn Martinengo-Cesaresco
For several days the two third cousins of the Autocrat lived together in the tent, and enjoyed each other's society very much.

The Bee-Man of Orn and Other Fanciful Tales |Frank R. Stockton

Even an autocrat has his advisers, and in some of them he was fortunate.

The Long White Cloud |William Pember Reeves
He jeered at "the coxcomb Czar, the autocrat of waltzes and of war."

Main Currents in Nineteenth Century Literature - 4. Naturalism in England |Georg Brandes
They were game—still full of fight, and in no way abashed by the autocrat of the ship.

The Grain Ship |Morgan Robertson

autocrat

/ (ˈɔːtəˌkræt) /

a ruler who possesses absolute and unrestricted authority

a domineering or dictatorial person