fe·ver 
(fēvər)
(fēvər)n.
1.
a. Abnormally high body temperature.
b. Any of various diseases characterized by abnormally high body temperature.
2.
a. A condition of heightened activity or excitement: a fever of anticipation.
b. A contagious, usually short-lived enthusiasm or craze: disco fever.
v. fe·vered, fe·ver·ing, fe·vers
v.tr.
To effect fever in.
v.intr.
To be or become feverish.
[Middle English, from Old English fefor and from Old French fievre, both from Latin febris.]