Etymology

dioxygen

D2I1O1X8Y4G2E1N1

Today it means: Diatomic oxygen: the normal allotrope of oxygen, having two atoms per molecule. Full definition →

English oxygen ← French oxygène ← Ancient Greek γένος (génos)
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Hellenic*dwi-
  4. Ancient Greekδῐ- (dĭ-)
  5. Latindi-
  6. Englishdi-
  7. Proto-Indo-European*h₂eḱ-der.?
  8. Ancient Greekὀξύς (oxús)
  9. Proto-Indo-European*ǵenh₁-
  10. Proto-Indo-European*ǵénh₁os
  11. Proto-Hellenic*génos
  12. Ancient Greekγένος (génos)
  13. Frenchoxygène
  14. Englishoxygen
  15. English todaydioxygen

From di- + oxygen.

Etymology from Wiktionary, CC BY-SA 4.0.