Etymology

antiproton

A1N1T1I1P3R1O1T1O1N1

Today it means: The antiparticle of the proton, having a negative electric charge. Full definition →

English proton ← Ancient Greek πρῶτον (prôton) ← Proto-Indo-European *pró
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The story

  1. Proto-Indo-European*h₂ent-
  2. Proto-Indo-European*h₂énts
  3. Proto-Indo-European*h₂énti
  4. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
  5. Ancient Greekἀντι- (anti-)
  6. Englishanti-
  7. Proto-Indo-European*per-der.?
  8. Proto-Indo-European*pér
  9. Proto-Indo-European*pró
  10. Ancient Greekπρό (pró)
  11. Ancient Greekπρῶτον (prôton)
  12. Englishproton
  13. English todayantiproton

From anti- + proton.

Etymology from Wiktionary, CC BY-SA 4.0.