Etymology

dipositronium

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Today it means: The short-lived combination of two positronium exotic atoms that are bound together in the same way as a hydrogen molecule Full definition →

English positronium ← Latin di- ← Ancient Greek δῐ- (dĭ-)
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Hellenic*dwi-
  4. Ancient Greekδῐ- (dĭ-)
  5. Latindi-
  6. Englishdi-
  7. Englishpositr(on)
  8. Englishonium
  9. Englishpositronium
  10. English todaydipositronium

From di- + positronium.

Etymology from Wiktionary, CC BY-SA 4.0.