Where does “fever” come from?

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

Ancestry of “fever”, step by step

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

Words derived from “fever”

Every word from Proto-Indo-European dʰegʷʰ- →Every word from Proto-Indo-European dʰegʷʰris →Every word from Proto-Italic *feɣʷris →