Where does “subfebril” come from?
subfebril (German) comes from German febril, from Medieval Latin febrilis, from Latin febris, from Proto-Italic *feɣʷris, from Proto-Indo-European dʰegʷʰris, from Proto-Indo-European dʰegʷʰ- — to burn; warm, hot.
subfebril (German): subfebrile
Ancestry of “subfebril”, step by step