Where does “κιλοβάτ” come from?

κιλοβάτ (Greek) comes from French kilowatt, from French kilo-, from Ancient Greek χίλιοι, from Proto-Hellenic *kʰehliyoi, from Proto-Indo-European ǵʰéslom, from Proto-Indo-European sm̥-, from Proto-Indo-European sem- — together, one.

κιλοβάτ (Greek): kilowatt