FERVOR

ardor, ardour, fervor, fervour, fervency, fire, fervidness

(noun) feelings of great warmth and intensity; “he spoke with great ardor”

excitement, excitation, inflammation, fervor, fervour

(noun) the state of being emotionally aroused and worked up; “his face was flushed with excitement and his hands trembled”; “he tried to calm those who were in a state of extreme inflammation”

Source: WordNet® 3.1

Etymology

Noun

fervor (countable and uncountable, plural fervors)

(American spelling) An intense, heated emotion; passion, ardor.

(American spelling) A passionate enthusiasm for some cause.

(American spelling) Heat.

Synonyms

• (passionate enthusiasm): fire in the belly, zeal

Anagrams

• frover

Source: Wiktionary

Fer"vor, n. [Written also fervour.] Etym: [OF. fervor, fervour, F. ferveur, L. fervor, fr. fervere. See Fervent.]

1. Heat; excessive warmth. The fevor of ensuing day. Waller.

2. Intensity of feeling or expression; glowing ardor; passion; holy zeal; earnestness. Hooker. Winged with fervor of her love. Shak.

Syn.

– Fervor, Ardor. Fervor is a boiling heat, and ardor is a burning heat. Hence, in metaphor, we commonly use fervor and its derivatives when we conceive of thoughts or emotions under the image of ebullition, or as pouring themselves forth. Thus we speak of the fervor of passion, fervid declamation, fervid importunity, fervent supplication, fervent desires, etc. Ardent is used when we think of anything as springing from a deepseated glow of soul; as, ardent friendship, ardent zeal, ardent devotedness; burning with ardor for the fight.

Source: Webster’s Unabridged Dictionary 1913 Edition