Etymology

dialkylammonium

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Today it means: Any univalent cation, of general formula R₂NH₂⁺, formed by protonation of a secondary amine Full definition →

English ammonium ← New Latin ammōnium ← Ancient Greek ῡ̔́λη (hū́lē)
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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. Akkadian𒎎𒋆𒁉𒍣𒁕 (guḫlum)
  8. Aramaicכוחלא (kuḥlā)
  9. Arabicكُحْل (kuḥl)
  10. Andalusian Arabicكُحُول (kuḥūl)
  11. Medieval Latinalcoho
  12. Middle Englishalcofol
  13. Englishalc(ohol)
  14. Proto-Indo-European*swel-der.?
  15. Ancient Greekῡ̔́λη (hū́lē)
  16. Englishalkyl
  17. Englishdialkyl
  18. New Latinammōnium
  19. Englishammonium
  20. English todaydialkylammonium

From dialkyl + ammonium.

Etymology from Wiktionary, CC BY-SA 4.0.