Where does “inventer” come from?

inventer (Old French) comes from Latin inventus, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

Ancestry of “inventer”, step by step

Step	Language	Word	Meaning
1	Latin	inventus	found, having been found; discovered, having been...
2	Latin	în	in, at, on, upon, from (space)
3	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
4	Proto-Italic	en	in
5	Proto-Indo-European	h₁én	in