Etymology

ardor

A1R1D2O1R1

Today it means: Great warmth of feeling; fervor; passion. Full definition →

Middle English ardour ← Anglo-Norman ardour ← Old French ardur
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The story

  1. Proto-Indo-European*h₂eHs-
  2. Proto-Indo-European*h₂eHs-eh₁yeti
  3. Proto-Italic*āzēō
  4. Latināreō
  5. Proto-Indo-European*dʰeh₁-
  6. Latināridus
  7. Latinār(i)dus
  8. Latinārdeō
  9. Latinārdor
  10. Old Frenchardur
  11. Anglo-Normanardour
  12. Middle Englishardour
  13. English todayardor

From Middle English ardour, ardowr, ardure, from Anglo-Norman ardour, from Old French ardur, from Latin ardor, from ardere (“to burn”).

Etymology from Wiktionary, CC BY-SA 4.0.