dictator

noun

Etymology: From Latin dictātor (“a chief magistrate”), from dictō (“dictate, prescribe”), from dīcō (“say, speak”). By surface analysis, dictate + -or, literally “one who dictates”. Compare Old English tictator (“absolute ruler of the Roman Republic”).

1. An authoritarian leader of a country, nation, or government.

   “The Dominicans had lived for thirty years under the iron-fisted rule of dictator Leonidas Trujillo. During those years, which ended with Trujillo's assassination in 1961, those who opposed Trujillo had three choices: to go into exile, to go underground, or to remain quiet. Most Dominicans had chosen the third course.”

   “Dictator, noun : someone who doesn't let American CEOs dictate how their country is run”

2. A magistrate without colleague in republican Ancient Rome, who held full executive authority for a term granted by the Senate, typically to conduct a war.
3. A tyrannical boss or authority figure.
4. Misspelling of dictater.