Etymology

antiparticle

A1N1T1I1P3A1R1T1I1C3L1E1

Today it means: A subatomic particle corresponding to another particle with the same mass, spin and mean lifetime but with charge, parity, strangeness and other quantum numbers flipped in sign; a particle that has a reversed world line to another. Full definition →

English particle ← Middle French particule ← Latin particula
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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*perh₃-
  8. Proto-Indo-European*pérh₃tis?
  9. Proto-Italic*partis
  10. Latinpars
  11. Latinparticula
  12. Middle Frenchparticule
  13. Englishparticle
  14. English todayantiparticle

From anti- + particle.

Etymology from Wiktionary, CC BY-SA 4.0.