Where does “σύνδεσις” come from?

σύνδεσις (Ancient Greek) comes from Ancient Greek συνδέω, from Ancient Greek σῠν-, from Ancient Greek σύν, from Proto-Hellenic *ksún — beside, with.

σύνδεσις (Ancient Greek): binding together

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	συνδέω	tie together, bind together
2	Ancient Greek	σῠν-	together; with, together
3	Ancient Greek	σύν	beside, with
4	Proto-Hellenic	*ksún	beside, with