Etymology

aeroallergen

A1E1R1O1A1L1L1E1R1G2E1N1

Today it means: Any airborne allergen (such as pollen) Full definition →

English allergen ← Ancient Greek ἀέρος (aéros) ← Proto-Hellenic *auhḗr
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The story

  1. Proto-Indo-European*h₂ews-
  2. Proto-Indo-European*h₂ewsér
  3. Proto-Hellenic*auhḗr
  4. Ancient Greekᾱ̓ήρ (āḗr)
  5. Ancient Greekἀέρος (aéros)
  6. Englishaero-
  7. Englishallergen
  8. English todayaeroallergen

From aero- + allergen.

Etymology from Wiktionary, CC BY-SA 4.0.