Where does “hernerokkasumu” come from?
hernerokkasumu (Finnish) comes from Finnish hernerokka, from Finnish herne, from Proto-Finnic herneh, from Proto-Balto-Slavic *źírˀnan, from Proto-Indo-European ǵr̥h₂nóm, from Proto-Indo-European ǵr̥h₂nós, from Proto-Indo-European ǵerh₂- — to grow old, to mature.
hernerokkasumu (Finnish): pea-souper
Ancestry of “hernerokkasumu”, step by step