Where does “Féiwer” come from?
Féiwer (Luxembourgish) comes from Middle High German fieber, from Old High German fiebar, from Proto-Germanic *fēbr, from Latin febris, from Proto-Italic *feɣʷris, from Proto-Indo-European dʰegʷʰris, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.
Féiwer (Luxembourgish): fever
Ancestry of “Féiwer”, step by step