Where does “kuusettuminen” come from?

kuusettuminen (Finnish) comes from Finnish kuusettua, from Finnish -ttua, from Finnish -ttää, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.

Ancestry of “kuusettuminen”, step by step

StepLanguageWordMeaning
1FinnishkuusettuaTo become replaced with spruce
2Finnish-ttuaForms inchoative or passive intransitive verbs...
3Finnish-ttääFront vowel variant of -ttaa
4Proto-Finnic-ttadakCreates causative verbs from regular verbs,...
5Proto-Uralic-kta-—
Every word from Proto-Uralic -kta- →Every word from Finnish -ttää →Every word from Proto-Finnic -ttadak →