hätäkatkaisin (Finnish) comes from Finnish hätä, from Proto-Finnic hätä, from Proto-Finnic šätä, from Proto-Germanic sētō, from Proto-Indo-European sḗd- — to sit.
hätäkatkaisin (Finnish): emergency switch
Definitions
emergency switch
Ancestry of “hätäkatkaisin”, step by step
hätäkatkaisin traces back through two separate lines of ancestry.