Etymology

enantiomer

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Today it means: One of a pair of stereoisomers that is the mirror image of the other, but may not be superimposed on this other stereoisomer. Full definition →

Ancient Greek μέρος (méros) ← Proto-Hellenic *(h)méros ← Proto-Indo-European *(s)méros
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The story

  1. Proto-Indo-European*h₁én
  2. Ancient Greekἐν (en)
  3. Ancient Greekἐν- (en-)
  4. Proto-Indo-European*h₂ent-
  5. Proto-Indo-European*h₂entíos
  6. Proto-Hellenic*antíos
  7. Ancient Greekᾰ̓ντῐ́ος (ăntĭ́os)
  8. Ancient Greekἐνᾰντῐ́ος (enăntĭ́os)
  9. Englishenantio-
  10. Proto-Indo-European*(s)mer-
  11. Proto-Indo-European*(s)méros
  12. Proto-Hellenic*(h)méros
  13. Ancient Greekμέρος (méros)
  14. English todayenantiomer

From enantio- + -mer.

Etymology from Wiktionary, CC BY-SA 4.0.