Where does “ὑποβολή” come from?

ὑποβολή (Ancient Greek) comes from Ancient Greek βάλλω, from Proto-Hellenic *gʷəlnō.

Ancestry of “ὑποβολή”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	βάλλω	I throw, cast, hurl; I let fall; I strike, touch
2	Proto-Hellenic	*gʷəlnō	—

ὑποβολή — Etymology, Origin & Word History | Etymology Explorer