Etymology

polyphenylene

P3O1L1Y4P3H4E1N1Y4L1E1N1E1

Today it means: Any of several polymers in which the repeat unit is a phenylene radical; but especially a polyphenylene oxide Full definition →

English phenylene ← Ancient Greek πολῠ́ς (polŭ́s) ← Proto-Indo-European *polh₁ús
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Englishphenylene
  6. English todaypolyphenylene

From poly- + phenylene.

Etymology from Wiktionary, CC BY-SA 4.0.