Meaning of autocrator in English:

autocrator

Pronunciation /ɔːˈtɒkrətə/

noun

historical
  • (A title of) an autocratic ruler.

    Chiefly with reference to Russian tsars, or to Roman and Byzantine emperors.

Origin

Early 18th century; earliest use found in Prerogative of Primogeniture. From Hellenistic Greek and Byzantine Greek αὐτοκράτωρ title of the Roman emperor (rendering classical Latin imperātor; specific use of ancient Greek αὐτοκράτωρ one's own master, absolute ruler from αὐτο- + -κράτωρ), originally after Russian samoderžec absolute ruler, (now obsolete) sovereign ruler (Old Russian samod′rž′c′ master, sovereign ruler, absolute ruler), itself after Byzantine Greek αὐτοκράτωρ.