Where does “rosk” come from?

rosk (Westrobothnian) comes from Old Swedish rost, from Old Norse rustr, from Proto-Germanic rustaz, from Proto-Indo-European rudʰso-, from Proto-Indo-European h₁rewdʰ- — red.

rosk (Westrobothnian): rust

Definitions

  1. rust

Ancestry of “rosk”, step by step

StepLanguageWordMeaning
1Old Swedishrostrust
2Old Norserustr—
3Proto-Germanicrustazrust
4Proto-Indo-Europeanrudʰso-red
5Proto-Indo-Europeanh₁rewdʰ-red
Every word from Proto-Indo-European h₁rewdʰ- →Every word from Proto-Indo-European rudʰso- →Every word from Proto-Germanic rustaz →