Where does “pato-” come from?

pato- (Italian) comes from Ancient Greek πάθος, from Ancient Greek πάσχω, from Proto-Indo-European bʰendʰ- — to bind; bond.

pato- (Italian): patho-

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	πάθος	pain, suffering, death; misfortune, calamity,...
2	Ancient Greek	πάσχω	to undergo, experience; have someone do something...
3	Proto-Indo-European	bʰendʰ-	to bind; bond

pato- — Etymology, Origin & Word History | Etymology Explorer