Where does “Alison” come from?

Alison comes from Old French Aliz, a diminutive form whose ultimate origin and meaning remain uncertain.

Ancestry of “Alison”, step by step

Step	Language	Word	Meaning
1	Middle English	Alisoun	—
2	Old French	Alison	—
3	Old French	Aliz	—
4	Proto-Basque	-ali	—
5	Old High German	sazzo	—
6	Proto-Germanic	*sittjan	—
7	Proto-Germanic	sitjaną	to sit
8	Proto-Indo-European	sḗd-	—

Alison — Etymology, Origin & Word History | Etymology Explorer