Where does “progeter” come from?

progeter (Old French) comes from Old French jeter, from Latin iectāre, from Latin iactāre, from Latin iaciō, from Proto-Indo-European (H)yeh₁- — to throw.

Ancestry of “progeter”, step by step

Step	Language	Word	Meaning
1	Old French	jeter	to throw
2	Latin	iectāre	—
3	Latin	iactāre	—
4	Latin	iaciō	to throw, hurl, cast, fling; throw away
5	Proto-Indo-European	(H)yeh₁-	to throw

Every word from Proto-Indo-European (H)yeh₁- →Every word from Latin iaciō →Every word from Latin iactāre →