Where does “patio” come from?

patio (Italian) comes from Spanish patio, from Latin pactus, from Latin pangō, from Proto-Italic pangō, from Proto-Indo-European peh₂ǵ- — to attach.

patio (Italian): patio

Definitions

Step	Language	Word	Meaning
1	Spanish	patio	yard, patio; courtyard; playground or
2	Latin	pactus	fastened, fixed; planted; agreed
3	Latin	pangō	to fasten, fix, set, especially drive, sink, force in
4	Proto-Italic	pangō	to fasten, to fix
5	Proto-Indo-European	peh₂ǵ-	to attach