kleptocrat (English) comes from English klepto-, from Ancient Greek κλέπτης, from Ancient Greek κλέπτω, from Proto-Hellenic klépťō, from Proto-Indo-European klép-ye-ti, from Proto-Indo-European ḱlep-, from Proto-Indo-European klep- — to steal.
kleptocrat (English): A ruling figure in a kleptocracy