Where does “algorisme” come from?

algorisme (Middle English) comes from Anglo-Norman algorisme, from Medieval Latin algorismus, from Arabic الْخُوَارِزْمِيّ.

Ancestry of “algorisme”, step by step

Step	Language	Word	Meaning
1	Anglo-Norman	algorisme	—
2	Medieval Latin	algorismus	algorithm
3	Arabic	الْخُوَارِزْمِيّ	—

algorisme — Etymology, Origin & Word History | Etymology Explorer