Where does “suruinen” come from?

suruinen (Finnish) comes from Finnish suru, from Finnish surra, from Proto-Finnic surdak, from Finnish sure-.

Ancestry of “suruinen”, step by step

StepLanguageWordMeaning
1Finnishsurusorrow, grief, woe; Swedish Finn
2FinnishsurraTo mourn, grieve
3Proto-Finnicsurdakto die
4Finnishsure-—
Every word from Finnish sure- →Every word from Proto-Finnic surdak →Every word from Finnish surra →