Etymology

acrosin

A1C3R1O1S1I1N1

Today it means: A proteolytic enzyme, found in the acrosome of spermatozoa, that enables penetration of the egg. Full definition →

English acrosome ← Ancient Greek σῶμα (sôma) ← Proto-Hellenic *styṓmə?
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The story

  1. Proto-Indo-European*h₂eḱ-
  2. Proto-Indo-European*h₂eḱrós
  3. Proto-Hellenic[Term?]
  4. Ancient Greekᾰ̓́κρος (ắkros)
  5. Englishacro-
  6. Proto-Indo-European*tewh₂-
  7. Proto-Indo-European*twoH-mn̥
  8. Proto-Hellenic*twṓmə?
  9. Proto-Indo-European*styeH-
  10. Proto-Indo-European*(s)tyoH-mn̥
  11. Proto-Hellenic*styṓmə?
  12. Ancient Greekσῶμα (sôma)
  13. Englishacrosome
  14. English todayacrosin

From acrosome + -in.

Etymology from Wiktionary, CC BY-SA 4.0.