Etymology

prefactor

P3R1E1F4A1C3T1O1R1

Today it means: A coefficient which precedes a given quantity in a mathematical formula Full definition →

English factor ← Middle English factour ← Anglo-Norman factour
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The story

  1. Proto-Indo-European*per-
  2. Proto-Indo-European*preh₂-
  3. Proto-Indo-European*préh₂i?
  4. Proto-Italic*prai
  5. Proto-Italic*prai-
  6. Latinprae-
  7. Middle Englishpre-
  8. Englishpre-
  9. Latinfactor
  10. Middle Frenchfacteur
  11. Latinfactor
  12. Anglo-Normanfactour
  13. Middle Englishfactour
  14. Englishfactor
  15. English todayprefactor

From pre- + factor.

Etymology from Wiktionary, CC BY-SA 4.0.