fervor
n.
mid-14c., "warmth or glow of feeling," from Old French fervor "heat; enthusiasm, ardor, passion" (12c., Modern French ferveur), from Latin fervor "a boiling, violent heat; passion, ardor, fury," from fervere "to boil; be hot" (see brew, v.).
〔李〕[ferv;-orn.] n.热情； 热心； 白热 ←ferv (L fervere)=to boil 沸
〔蒋〕[ferv热，-or抽象名词后缀] 炽热，热情，热烈