Etymology

acylium

A1C3Y4L1I1U1M3

Today it means: Any acyl cation R-C⁺=O derived from a carboxylic acid. Full definition →

English acyl ← Ancient Greek ῡ̔́λη (hū́lē) ← Latin aceō
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The story

  1. Proto-Indo-European*h₂eḱ-
  2. Proto-Indo-European*h₂eḱéh₁yeti
  3. Proto-Italic*akēō
  4. Latinaceō
  5. Ancient Greekῡ̔́λη (hū́lē)
  6. Englishacyl
  7. English todayacylium

From acyl + -ium.

Etymology from Wiktionary, CC BY-SA 4.0.