In later use chiefly with reference to Nazi Germany, and the theory (proposed by M. Broszat, H. Mommsen, and others) that its government was characterized by competing factions rather than by the absolute power of a dictator, or monocracy..
Origin
Late 16th century; earliest use found in Nicol Burne (fl. 1574–1598), Roman Catholic controversialist. From poly- + -cracy.