Etymology

polypyrrole

P3O1L1Y4P3Y4R1R1O1L1E1

Today it means: Any of a class of electrically conducting polymers whose repeat unit is a pyrrole Full definition →

English pyrrole ← German Pyrro ← Ancient Greek πῠρρός (pŭrrhós)
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Ancient Greekπῠρρός (pŭrrhós)
  6. GermanPyrro
  7. Englishpyrrole
  8. English todaypolypyrrole

From poly- + pyrrole.

Etymology from Wiktionary, CC BY-SA 4.0.