Where does “χύσι” come from?

χύσι (Greek) comes from Greek χύνω, from Ancient Greek χύνω, from Ancient Greek χέω, from Ancient Greek χείω, from Proto-Hellenic kʰéyyō.

χύσι (Greek): cum

Definitions

Step	Language	Word	Meaning
1	Greek	χύνω	spill, pour, shed; pour, cast, make; cum, come,...
2	Ancient Greek	χύνω	to pour out, let flow; to shed, scatter
3	Ancient Greek	χέω	I pour; I scatter, shed
4	Ancient Greek	χείω	—
5	Proto-Hellenic	kʰéyyō	—