Etymology

dwi-

Today it means: A designation prefix for undiscovered chemical elements lying two periods under a known element in the periodic table. (For example, rhenium was called dwi-manganese before its discovery in 1925.) Full definition →

Sanskrit द्वि (dvi) ← Proto-Indo-European *dwi-
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Sanskritद्वि (dvi)
  4. English todaydwi-

Borrowed from Sanskrit द्वि (dvi, “two”).

Etymology from Wiktionary, CC BY-SA 4.0.