Where does “vainajala” come from?

vainajala (Finnish) comes from Finnish vainaja, from Proto-Finnic vainaga, from Proto-Germanic wainagaz, from Proto-Germanic wainōną, from Proto-Indo-European wáy, from Proto-Indo-European uwáy — to see oneself.

Ancestry of “vainajala”, step by step

StepLanguageWordMeaning
1Finnishvainajadead person, deceased, decedent; late, deceased;...
2Proto-Finnicvainagadeceased, dead person
3Proto-Germanicwainagazwoeful, sad; pathetic, pitiable
4Proto-Germanicwainōnąto cry, to lament, to grieve
5Proto-Indo-Europeanwáyoh!; ah!; woe!
6Proto-Indo-Europeanuwáyto see oneself
Every word from Proto-Indo-European uwáyEvery word from Proto-Indo-European wáyEvery word from Proto-Germanic wainōną