Etymology

polymethyl

P3O1L1Y4M3E1T1H4Y4L1

Today it means: Any of various polymers whose respective monomer is a methyl derivative; Any of various compounds having many methyl groups Full definition →

English methyl ← German Methy ← Ancient Greek ῡ̔́λη (hū́lē)
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The story

  1. Proto-Indo-European*pleh₁-
  2. Proto-Indo-European*polh₁ús
  3. Ancient Greekπολῠ́ς (polŭ́s)
  4. Englishpoly-
  5. Proto-Indo-European*médʰu
  6. Proto-Hellenic*métʰu
  7. Ancient Greekμέθυ (méthu)
  8. Proto-Indo-European*swel-der.?
  9. Ancient Greekῡ̔́λη (hū́lē)
  10. GermanMethy
  11. Englishmethyl
  12. English todaypolymethyl

From poly- + methyl.

Etymology from Wiktionary, CC BY-SA 4.0.