Etymology

polyamide

P3O1L1Y4A1M3I1D2E1

Today it means: Any of a range of polymers containing amide (or peptide) repeat units; examples include proteins and nylon. Full definition →

English amide ← Proto-Indo-European *dʰeh₁- ← Latin ammoniacus
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Egyptianjmn
  6. Ancient GreekᾸ̓́μμων (Ắmmōn)
  7. LatinAmmōn
  8. Latinammoniacus
  9. Englishammonia
  10. Proto-Indo-European*dʰeh₁-
  11. Englishamide
  12. English todaypolyamide

From poly- + amide.

Etymology from Wiktionary, CC BY-SA 4.0.