Where does “societas” come from?

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

Ancestry of “societas”, step by step

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