Where does “kaartuminen” come from?

kaartuminen (Finnish) comes from Finnish kaartua, from Finnish kaartaa, from Proto-Finnic kaartadak, from Proto-Finnic kaari, from Proto-Uralic këŋere — curved thing.

Ancestry of “kaartuminen”, step by step

StepLanguageWordMeaning
1Finnishkaartuato curve; to overarch
2Finnishkaartaato curve, bend, turn, arch
3Proto-Finnickaartadakto curve, to bend
4Proto-Finnickaaricurve
5Proto-Uralickëŋerecurved thing
Every word from Proto-Uralic këŋere →Every word from Proto-Finnic kaari →Every word from Proto-Finnic kaartadak →
kaartuminen — Etymology, Origin & Word History | Etymology Explorer