Etymology

undeuterated

U1N1D2E1U1T1E1R1A1T1E1D2

Today it means: Not deuterated; having the natural distribution of hydrogen isotopes, or only the form with a single neutron Full definition →

English deuterated ← Middle English un- ← Old English un-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Germanic*un-
  4. Proto-West Germanic*un-
  5. Old Englishun-
  6. Middle Englishun-
  7. Englishun-
  8. Englishdeuterated
  9. English todayundeuterated

From un- + deuterated.

Etymology from Wiktionary, CC BY-SA 4.0.