noun, masculine/feminine/o.tɔ.kʁat/plural: autocrates
autocrat (ruler with absolute power)
From Ancient Greek αὐτοκρατής (autokratḗs, “sovereign”), from αὐτο- (auto-, “self”) (combining form of αὐτός (autós)) + κράτος (krátos, “strength, power”) + -ης (-ēs).