Where does “erääntyminen” come from?

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

Ancestry of “erääntyminen”, step by step

StepLanguageWordMeaning
1Finnisherääntyäto fall/become/come due, mature, expire
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

Words derived from “erääntyminen

Every word from Proto-Finnic -üdäkEvery word from Finnish -uaEvery word from Finnish -Vntua