Where does “κιλομπάιτ” come from?

κιλομπάιτ (Greek) comes from Greek κιλο-, from English kilo-, 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.

κιλομπάιτ (Greek): kilobyte