fervor/ˈfɜːvə/EtymologyFrom Middle English fervour, from Old French, from Latin fervor (“a boiling or raging heat, heat, vehemence, passion”), from fervere (“to boil, be hot”); see fervent. By surface analysis, Latin ferv- + -or (“abstract noun suffix”).fervor means an intense, heated emotion; passion, ardor. Lexicurio rates it Distinctive — a strength score of 67 out of 100.nounAn intense, heated emotion; passion, ardor.“The coach trains his water polo team with fervor.”A passionate enthusiasm for some cause.Heat.