Etymology

adamantyl

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Today it means: The univalent radical derived from adamantane Full definition →

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

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Hellenic*ə-
  4. Ancient Greekἀ- (a-)?
  5. Proto-Indo-European*demh₂-
  6. Ancient Greekδαμνάω (damnáō)?
  7. Ancient Greekἀδάμας (adámas)
  8. Englishadamantane
  9. Proto-Indo-European*swel-der.?
  10. Ancient Greekῡ̔́λη (hū́lē)
  11. English todayadamantyl

From adamantane + -yl.

Etymology from Wiktionary, CC BY-SA 4.0.