Meaning

noun a political system governed by a single individual

noun a political theory favoring unlimited authority by a single individual

originFrom auto- + -cracy, from Ancient Greek αὐτοκρατία (autokratía, “A system of government by one person with absolute power.”), from αὐτός (autós, “single, self, same, alone”) + κράτος (krátos, “power”) + -ία (-ía, “feminine abstract nouns suffix”); see also Ancient Greek αὐτοκρατής (autokratḗs, “one who governs alone”).

Etymology from Wiktionary, CC BY-SA 3.0