Where does “montaingneus” come from?

montaingneus (Old French) comes from Latin montāniōsus, from Latin montānia, from Latin montem, from Latin mons, from Proto-Indo-European monti, from Portuguese Monte, from Old Portuguese monte.

Ancestry of “montaingneus”, step by step

Step	Language	Word	Meaning
1	Latin	montāniōsus	mountainous
2	Latin	montānia	mountainous area
3	Latin	montem	accusative singular of mōns; mountain
4	Latin	mons	mountain, mount; towering mass, heap, great...
5	Proto-Indo-European	monti	—
6	Portuguese	Monte	mount; a mountain or large hill
7	Old Portuguese	monte	—

Words derived from “montaingneus”

montagneux

Every word from Old Portuguese monte →Every word from Latin montem →Every word from Latin mons →