ardor

ar·dor  (ärdr)

n.

1. Fiery intensity of feeling. See Synonyms at passion.

2. Strong enthusiasm or devotion; zeal: "The dazzling conquest of Mexico gave a new impulse to the ardor of discovery" (William Hickling Prescott).

3. Intense heat or glow, as of fire.

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[Middle English ardour, from Old French, from Latin rdor, from rdre, to burn; see as- in Indo-European roots.]

Thesaurus

Noun	1.	ardor - a feeling of strong eagerness (usually in favor of a person or cause); "they were imbued with a revolutionary ardor"; "he felt a kind of religious zeal" ardour, elan, zeal avidity, avidness, eagerness, keenness - a positive feeling of wanting to push ahead with something
	2.	ardor - intense feeling of love ardour love - a strong positive emotion of regard and affection; "his love for his work"; "children need a lot of love"
	3.	ardor - feelings of great warmth and intensity; "he spoke with great ardor" fervency, fervidness, fervor, fervour, ardour, fire passion, passionateness - a strong feeling or emotion zeal - excessive fervor to do something or accomplish some end; "he had an absolute zeal for litigation"