Where does “lascivia” come from?

lascivia (Latin) comes from Latin lascivus, from Latin -īvus, from Proto-Indo-European -iHwós, from Proto-Indo-European -wós — Creates adjectives from verb stems.

Ancestry of “lascivia”, step by step

Step	Language	Word	Meaning
1	Latin	lascivus	wanton, playful, frisky; lustful, licentious,...
2	Latin	-īvus	—
3	Proto-Indo-European	-iHwós	—
4	Proto-Indo-European	-wós	Creates adjectives from verb stems

Every word from Proto-Indo-European -wós →

lascivia — Etymology, Origin & Word History | Etymology Explorer