Where does “-ao” come from?

-ao (Finnish) comes from Proto-Finnic -ado, from Proto-Finnic -o, from Proto-Uralic -w.

Ancestry of “-ao”, step by step

Step	Language	Word	Meaning
1	Proto-Finnic	-ado	—
2	Proto-Finnic	-o	—
3	Proto-Uralic	-w	—

Words derived from “-ao”

Every word from Proto-Uralic -w →

-ao — Etymology, Origin & Word History | Etymology Explorer