Meaning

noun a metric unit of length equal to 1000 meters (or 0.621371 miles)

originEtymology tree Proto-Indo-European *ǵʰes- Proto-Indo-European *-lom Proto-Indo-European *ǵʰesliyoy Proto-Hellenic *kʰehliyoi Ancient Greek χίλιοι (khílioi)der. French kilo- Proto-Indo-European *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron)der. Latin metrumbor. French mètre French kilomètrebor. English…

Etymology from Wiktionary, CC BY-SA 3.0