Etymology

peptide

P3E1P3T1I1D2E1

Today it means: Any of a class of organic compounds consisting of various numbers of amino acids in which the amine of one is reacted with the carboxylic acid of the next to form an amide bond. Such molecules joined into polypeptides and proteins constitute crucial components of living organisms. Full definition →

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

  1. Proto-Indo-European*pekʷ-
  2. Proto-Indo-European*pékʷ-ye-
  3. Proto-Hellenic*pét͏̌t͏̌ō
  4. Ancient Greekπέσσω (péssō)bf.
  5. Ancient Greekπέπτω (péptō)
  6. Ancient Greekπεπτόν (peptón)
  7. GermanPepton
  8. Englishpeptone
  9. Proto-Indo-European*dʰeh₁-
  10. GermanPepton
  11. GermanPeptid
  12. English todaypeptide

From peptone, partially hydrolyzed protein, or German Peptid, from German Pepton, from Ancient Greek πεπτόν (peptón, “cooked, digested”) derived from πέπτω (péptō, “soften, ripen, boil, cook, bake, digest”).

Words from the same roots

GermanPepton all →

peptone

Ancient Greekπεπτόν all →

peptone

Etymology from Wiktionary, CC BY-SA 4.0.