Etymology

diphosgene

D2I1P3H4O1S1G2E1N1E1

Today it means: The highly chlorinated ester trichloromethyl chloroformate that is used in organic synthesis, and was once used as a military poison Full definition →

English phosgene ← Latin di- ← Ancient Greek δῐ- (dĭ-)
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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. Englishphosgene
  8. English todaydiphosgene

From di- + phosgene.

Etymology from Wiktionary, CC BY-SA 4.0.