Etymology

heteroallene

H4E1T1E1R1O1A1L1L1E1N1E1

Today it means: Any compound formally derived from an allene by replacing one or more carbon atoms of the cumulative bond system by another atom e.g. O=C=O (carbon dioxide) or CH₂=C=O (ketene). Full definition →

English allene ← Ancient Greek ἕτερος (héteros) ← Proto-Hellenic *hə́teros
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The story

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sḿ̥teros
  3. Proto-Hellenic*hə́teros
  4. Ancient Greekἕτερος (héteros)
  5. Englishhetero-
  6. Englishallene
  7. English todayheteroallene

From hetero- + allene.

Etymology from Wiktionary, CC BY-SA 4.0.