Where does “foss” come from?

foss (Norwegian) comes from Old Norse fors, from Proto-Germanic fursaz, from Pre-Germanic pŕ̥sos, from Proto-Indo-European pers- — to sprinkle, to spatter.

Ancestry of “foss”, step by step

StepLanguageWordMeaning
1Old Norseforsa waterfall
2Proto-Germanicfursazwaterfall, torrent
3Pre-Germanicpŕ̥sos—
4Proto-Indo-Europeanpers-to sprinkle, to spatter

Words derived from “foss”

Every word from Proto-Indo-European pers- →Every word from Pre-Germanic pŕ̥sos →Every word from Proto-Germanic fursaz →