Etymology

-oan

Today it means: Used to convert the name of an atom or ion to an adjective that means containing cations or anions of that atom or ion. Full definition →

Proto-Indo-European *h₃édosder.?
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The story

  1. Proto-Indo-European*h₃ed-
  2. Proto-Indo-European*h₃édosder.?
  3. English today-oan

Suffixal construction from -o(us) + -an.

Etymology from Wiktionary, CC BY-SA 4.0.