Where does “mocioun” come from?

mocioun (Middle English) comes from Middle French motion, from Latin mōtio, from Latin movēre, from Proto-Indo-European *m(y)ewh₁-.

Ancestry of “mocioun”, step by step

Step	Language	Word	Meaning
1	Middle French	motion	—
2	Latin	mōtio	—
3	Latin	movēre	—
4	Proto-Indo-European	*m(y)ewh₁-	—