Where does “adoperarvi” come from?

adoperarvi (Italian) comes from Italian adoperare, from Late Latin adoperare, from Latin ad, from Proto-Italic ad, from Proto-Indo-European h₂éd — to, at.

Ancestry of “adoperarvi”, step by step

Step	Language	Word	Meaning
1	Italian	adoperare	to use; to act
2	Late Latin	adoperare	—
3	Latin	ad	toward, to; up to; near, by, close by, at, to
4	Proto-Italic	ad	toward, to, on, up to, for
5	Proto-Indo-European	h₂éd	to, at

Every word from Proto-Indo-European h₂éd →Every word from Proto-Italic ad →Every word from Latin ad →