Where does “finishen” come from?

finishen (Middle English) comes from Old French finiss-, from Old French finir, from Latin fīniō, from Latin fīnis, from Proto-Indo-European dʰnh₂-.

Ancestry of “finishen”, step by step

Step	Language	Word	Meaning
1	Old French	finiss-	—
2	Old French	finir	Alternative form of finer
3	Latin	fīniō	—
4	Latin	fīnis	—
5	Proto-Indo-European	dʰnh₂-	—

finishen — Etymology, Origin & Word History | Etymology Explorer