Where does “kaasuuntuminen” come from?

kaasuuntuminen (Finnish) comes from Finnish kaasuuntua, from Finnish -Vntua, from Finnish -untua, from Finnish -ntua, from Finnish -ua, from Proto-Finnic -üdäk — Forms mainly passive or anticausative verbs.

Ancestry of “kaasuuntuminen”, step by step

StepLanguageWordMeaning
1FinnishkaasuuntuaTo become gas, be(come) gasified
2Finnish-VntuaForms passive verbs
3Finnish-untua
4Finnish-ntuaForms reflexive or inchoative intransitive verbs
5Finnish-uaForms stative or inchoative intransitive verbs...
6Proto-Finnic-üdäkForms mainly passive or anticausative verbs
Every word from Proto-Finnic -üdäkEvery word from Finnish -uaEvery word from Finnish -Vntua