Where does “fevere” come from?

fevere (Middle English) comes from Old French fievre, from Latin febris, from Proto-Italic *feɣʷris, from Proto-Indo-European dʰegʷʰris, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.

Ancestry of “fevere”, step by step

fevere traces back through two separate lines of ancestry.

via Old French fievre

StepLanguageWordMeaning
1Old Frenchfievrefever
2Latinfebrisfever
3Proto-Italic*feɣʷrisfever
4Proto-Indo-Europeandʰegʷʰris
5Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot

via Old English fefer

StepLanguageWordMeaning
1Old Englishfefer
Every word from Proto-Indo-European dʰegʷʰ-Every word from Proto-Indo-European dʰegʷʰrisEvery word from Proto-Italic *feɣʷris
fevere — Etymology, Origin & Word History | Etymology Explorer