Etymology

polypeptide

P3O1L1Y4P3E1P3T1I1D2E1

Today it means: Any polymer of (same or different) amino acids joined via peptide bonds. Full definition →

English peptide ← German Peptid ← Proto-Indo-European *dʰeh₁-
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Proto-Indo-European*pekʷ-
  6. Proto-Indo-European*pékʷ-ye-
  7. Proto-Hellenic*pét͏̌t͏̌ō
  8. Ancient Greekπέσσω (péssō)bf.
  9. Ancient Greekπέπτω (péptō)
  10. Ancient Greekπεπτόν (peptón)
  11. GermanPepton
  12. Englishpeptone
  13. Proto-Indo-European*dʰeh₁-
  14. GermanPepton
  15. GermanPeptid
  16. Englishpeptide
  17. English todaypolypeptide

From poly- + peptide.

Etymology from Wiktionary, CC BY-SA 4.0.