Etymology

kilometre

K5I1L1O1M3E1T1R1E1

Today it means: An SI unit of length equal to 10³ metres. Symbol: km Full definition →

French kilomètre ← Latin metrum ← Ancient Greek μέτρον (métron)
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The story

  1. Proto-Indo-European*ǵʰes-
  2. Proto-Indo-European*ǵʰesliyoy
  3. Proto-Hellenic*kʰehliyoi
  4. Ancient Greekχίλιοι (khílioi)
  5. Frenchkilo-
  6. Proto-Indo-European*med-
  7. Proto-Indo-European*meh₁-
  8. Ancient Greekμέτρον (métron)
  9. Latinmetrum
  10. Frenchmètre
  11. Frenchkilomètre
  12. English todaykilometre

From French kilomètre, from Ancient Greek χίλιοι (khílioi, “thousand”) + μέτρον (métron, “measure”); equivalent to kilo- + metre.

Words from the same roots

Ancient Greekχίλιοι all →

chilia-kilo-

Etymology from Wiktionary, CC BY-SA 4.0.