Where does “ali” come from?

ali (Finnish) comes from Finnish ala-, from Proto-Finnic ala, from Proto-Uralic ëla — below.

ali (Finnish): beneath, underneath

Definitions

Step	Language	Word	Meaning
1	Finnish	ala-	under-, sub-, lower, nether; inferior
2	Proto-Finnic	ala	lower; under
3	Proto-Uralic	ëla	below

ali — Etymology, Origin & Word History | Etymology Explorer