Etymology

iono-

Today it means: ISV combining form denoting relationship to ions Full definition →

English ion ← Ancient Greek ἰόν (ión) ← Proto-Hellenic *éimi
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The story

  1. Proto-Indo-European*h₁ey-
  2. Proto-Indo-European*h₁éyti
  3. Proto-Hellenic*éimi
  4. Ancient Greekἰόν (ión)
  5. Englishion
  6. English todayiono-

From ion + -o-.

Etymology from Wiktionary, CC BY-SA 4.0.