Where does “febrícula” come from?

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

febrícula (Portuguese): febricula, light fever (37-37.5 degrees)

Definitions

febricula, light fever (37-37.5 degrees)

Ancestry of “febrícula”, step by step

Step	Language	Word	Meaning
1	Latin	febrīcula	a slight fever
2	Latin	febris	fever
3	Proto-Italic	*feɣʷris	fever
4	Proto-Indo-European	dʰegʷʰris	—
5	Proto-Indo-European	dʰegʷʰ-	to burn; warm, hot

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