Etymology

autoimmunity

A1U1T1O1I1M3M3U1N1I1T1Y4

Today it means: The condition where one's immune system attacks one's own tissues, i.e., an autoimmune disorder. Full definition →

English immunity ← Ancient Greek αὐτο- (auto-) ← Proto-Indo-European *h₂ew
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The story

  1. Proto-Indo-European*h₂ew
  2. Proto-Indo-European*tó-
  3. Proto-Hellenic*autós
  4. Proto-Indo-European*h₂ew
  5. Ancient Greekαὖ (aû)
  6. Ancient Greekτόν (tón)
  7. Ancient Greekαὐτός (autós)
  8. Ancient Greekαὐτο- (auto-)
  9. Englishauto-
  10. Englishimmunity
  11. English todayautoimmunity

From auto- + immunity.

Etymology from Wiktionary, CC BY-SA 4.0.