Where does “vasaroiminen” come from?

vasaroiminen (Finnish) comes from Finnish vasaroida, from Finnish vasara, from Finnish -inen, from Finnish -uus, from Proto-Finnic -uc — -ness, -hood.

Ancestry of “vasaroiminen”, step by step

StepLanguageWordMeaning
1Finnishvasaroidato hammer; to malleate
2Finnishvasarahammer; malleus, hammer
3Finnish-inen-like, -ous, -y; -en; Creates adjectives from...
4Finnish-uusForms nouns from adjectives, expressing a quality
5Proto-Finnic-uc-ness, -hood
Every word from Proto-Finnic -uc →Every word from Finnish -inen →Every word from Finnish -uus →