ARDOR
ardor, ardour, fervor, fervour, fervency, fire, fervidness
(noun) feelings of great warmth and intensity; “he spoke with great ardor”
ardor, ardour
(noun) intense feeling of love
ardor, ardour, elan, zeal
(noun) 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”
Source: WordNet® 3.1
Etymology
Noun
ardor (countable and uncountable, plural ardors) (American spelling)
Great warmth of feeling; fervor; passion.
Spirit; enthusiasm; passion.
Intense heat.
Synonyms
• (warmth of feeling): intensity
• (spirit): elan, fire in the belly, passion, zeal
Antonyms
• apathy
Source: Wiktionary
Ar"dor, n. Etym: [L. ardor, fr. ardere to burn: cf. OF. ardor, ardur,
F. ardeur.] [Spelt also ardour.]
1. Heat, in a literal sense; as, the ardor of the sun's rays.
2. Warmth or heat of passion or affection; eagerness; zeal; as, he
pursues study with ardor; the fought with ardor; martial ardor.
3. pl.
Definition: Bright and effulgent spirits; seraphim. [Thus used by Milton.]
Syn.
– Fervor; warmth; eagerness. See Fervor.
Source: Webster’s Unabridged Dictionary 1913 Edition