Where does “febris” come from?

febris (Classical Latin) comes from Proto-Italic *feɣʷris, from Proto-Indo-European dʰegʷʰris, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.

Ancestry of “febris”, step by step

StepLanguageWordMeaning
1Proto-Italic*feɣʷrisfever
2Proto-Indo-Europeandʰegʷʰris
3Proto-Indo-Europeandʰegʷʰ-to burn; warm, hot
Every word from Proto-Indo-European dʰegʷʰ-Every word from Proto-Indo-European dʰegʷʰrisEvery word from Proto-Italic *feɣʷris