Meaning

noun a rise in the temperature of the body; frequently a symptom of infection

noun intense nervous anticipation

originFrom Middle English fever, fevere, from Old English fefer, fefor (“fever”) and Old French fievre (“fever”), from Latin febris (“a fever”), from Proto-Indo-European *dʰegʷʰ- (“to burn”). Displaced native Old English hriþ (“fever”). Compare also Saterland Frisian Fiewer, German Fieber, Danish feber, Swedish feber.

Etymology from Wiktionary, CC BY-SA 3.0