Etymology

allyl

A1L1L1Y4L1

Today it means: The univalent radical, CH₂=CH-CH₂-, existing especially in oils of garlic and mustard. Full definition →

Ancient Greek ῡ̔́λη (hū́lē) ← Proto-Indo-European *swel-der.? ← Latin allium
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The story

  1. Latinālium
  2. Latinallium
  3. Proto-Indo-European*swel-der.?
  4. Ancient Greekῡ̔́λη (hū́lē)
  5. English todayallyl

From Latin allium (“garlic”) + English -yl.

Etymology from Wiktionary, CC BY-SA 4.0.