Where does “inoculo” come from?

inoculo (Latin) comes from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

inoculo (Latin): to ingraft an eye or bud of one tree into another, inoculate, graft by budding, implant

Definitions

to ingraft an eye or bud of one tree into another, inoculate, graft by budding, implant

Step	Language	Word	Meaning
1	Latin	īn-	un-, non-, not
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