Etymology

polyacetylene

P3O1L1Y4A1C3E1T1Y4L1E1N1E1

Today it means: Any of a class of organic compounds containing a acetylene (-C≡C-) repeat units, especially any that occur naturally in some composite plants Full definition →

English acetylene ← French acétylène ← Ancient Greek πολῠ́ς (polŭ́s)
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Frenchacétylène
  6. Englishacetylene
  7. English todaypolyacetylene

From poly- + acetylene.

Etymology from Wiktionary, CC BY-SA 4.0.