Where does “voluminosus” come from?

voluminosus (Late Latin) comes from Latin volūmen, from Latin volvō, from Proto-Indo-European wēl-.

Ancestry of “voluminosus”, step by step

Step	Language	Word	Meaning
1	Latin	volūmen	—
2	Latin	volvō	—
3	Proto-Indo-European	wēl-	—

voluminosus — Etymology, Origin & Word History | Etymology Explorer