Where does “nubilous” come from?

nubilous (English) comes from Latin nūbilus, from Latin -idus, from Proto-Italic *-iðos.

nubilous (English): cloudy, misty; not clear

Definitions

Step	Language	Word	Meaning
1	Latin	nūbilus	—
2	Latin	-idus	tending to
3	Proto-Italic	*-iðos	—

nubilous — Etymology, Origin & Word History | Etymology Explorer