Etymology

ethanium

E1T1H4A1N1I1U1M3

Today it means: the carbocation, C₂H₇⁺, derived by the protonation of ethane Full definition →

English ethane ← German Ethy
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The story

  1. GermanEthy
  2. Englishethyl
  3. Englisheth-
  4. Englishethane
  5. English todayethanium

From ethane + -ium.

Etymology from Wiktionary, CC BY-SA 4.0.