Where does “pyörtymys” come from?

pyörtymys (Finnish) comes from Finnish -mus, from Finnish -ma, from Proto-Finnic -ma, from Proto-Uralic -ma.

Ancestry of “pyörtymys”, step by step

StepLanguageWordMeaning
1Finnish-musForms nouns from verbs. Variant of -us used with...
2Finnish-maForms action/result nouns from verbs; The suffix...
3Proto-Finnic-maForms action/result nouns from verbs; Forms the...
4Proto-Uralic-ma—
Every word from Proto-Uralic -ma →Every word from Proto-Finnic -ma →Every word from Finnish -mus →