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[ahr-der] /ˈɑr dər/
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.
Also, especially British, ardour.
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
1. fervency, spirit, earnestness, intensity. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for ardor
Contemporary Examples
Historical Examples
  • The ardor of Mr. Gladstone's feelings on this subject is notorious.

    The Grand Old Man Richard B. Cook
  • Man-like, hot with the ardor of the chase, he was deaf and blind to all else.

    The Black Bag Louis Joseph Vance
  • This feeling, be it understood, in no wise chilled my ardor.

    The Room in the Dragon Volant J. Sheridan LeFanu
  • He had been prepared for it, and to resist it, and break it down by the ardor of his appeal.

    The Law-Breakers Ridgwell Cullum
  • It was a problem which he debated with an ardor that had in it something of passion.

    A Spirit in Prison Robert Hichens
Word Origin and History for ardor

early 15c., "heat of passion or desire," from Old French ardure "heat, glow; passion" (12c.), from Latin ardorem (nominative ardor) "a flame, fire, burning, heat;" also of feelings, etc., "eagerness, zeal," from ardere "to burn" (see ardent). In Middle English, used of base passions; since Milton's time, of noble ones.

Online Etymology Dictionary, © 2010 Douglas Harper
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