Where does “-uu” come from?

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

-uu (Finnish): Forms nouns from verbs

Definitions

  1. Forms nouns from verbs

Ancestry of “-uu”, step by step

StepLanguageWordMeaning
1Finnish-au—
2Finnish-ao—
3Proto-Finnic-ado—
4Proto-Finnic-oForms action/result nouns from verbs
5Proto-Uralic-w—

Words derived from “-uu”

Every word from Proto-Uralic -w →Every word from Proto-Finnic -o →Every word from Finnish -au →