Etymology

heptoxide

H4E1P3T1O1X8I1D2E1

Today it means: any oxide containing seven oxygen atoms in each molecule Full definition →

English oxide ← French oxide ← Latin acidu
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The story

  1. Englishhept-
  2. Proto-Indo-European*h₂eḱ-der.?
  3. Ancient Greekὀξύς (oxús)
  4. Proto-Indo-European*ǵenh₁-
  5. Proto-Indo-European*ǵénh₁os
  6. Proto-Hellenic*génos
  7. Ancient Greekγένος (génos)
  8. Frenchoxygène
  9. Latinacidu
  10. Frenchacide
  11. Frenchoxide
  12. Englishoxide
  13. English todayheptoxide

From hept- + oxide.

Etymology from Wiktionary, CC BY-SA 4.0.