Etymology

pentachloride

P3E1N1T1A1C3H4L1O1R1I1D2E1

Today it means: any chloride containing five chlorine atoms in each molecule Full definition →

English chloride ← Proto-Indo-European *dʰeh₁- ← Ancient Greek χλωρός (khlōrós)
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The story

  1. Proto-Indo-European*pénkʷe
  2. Proto-Hellenic*pénkʷe
  3. Ancient Greekπέντε (pénte)
  4. Ancient Greekπεντᾰ- (pentă-)
  5. Englishpenta-
  6. Proto-Indo-European*ǵʰelh₃-
  7. Proto-Indo-European*ǵʰl̥h₃rós
  8. Proto-Hellenic*kʰlōrós
  9. Ancient Greekχλωρός (khlōrós)
  10. Englishchlor(ine)
  11. Proto-Indo-European*dʰeh₁-
  12. Englishchloride
  13. English todaypentachloride

From penta- + chloride.

Etymology from Wiktionary, CC BY-SA 4.0.