Where does “patos” come from?

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

Ancestry of “patos”, step by step

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

patos — Etymology, Origin & Word History | Etymology Explorer