great warmth of feeling; fervor; passion: She spoke persuasively and with ardor.
intense devotion, eagerness, or enthusiasm; zeal: his well-known ardor for Chinese art.
burning heat.

Nearby words

  1. ardi,
  2. ardipithecus,
  3. ardipithecus kadabba,
  4. ardipithecus ramidus,
  5. ardmore,
  6. ardour,
  7. ards,
  8. arduous,
  9. arduously,
  10. ardurous

Also especially British, ar·dour.

Origin of ardor

1350–1400; Middle English < Latin, equivalent to ārd(ēre) to burn + -or -or1; replacing Middle English ardure < Old French ardur < Latin, as above; 17th century ardour < Anglo-French < Latin, as above

SYNONYMS FOR ardor Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ardour

British Dictionary definitions for ardour


US ardor


feelings of great intensity and warmth; fervour
eagerness; zeal

Word Origin for ardour

C14: from Old French ardour, from Latin ārdor, from ārdēre to burn

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ardour
Online Etymology Dictionary, © 2010 Douglas Harper