Etymology

diammonium

D2I1A1M3M3O1N1I1U1M3

Today it means: Two ammonium ions in a compound Full definition →

English ammonium ← New Latin ammōnium ← Latin di-
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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. New Latinammōnium
  8. Englishammonium
  9. English todaydiammonium

From di- + ammonium.

Etymology from Wiktionary, CC BY-SA 4.0.