Where does “brist” come from?

brist (Old Swedish) comes from Old Norse brjóst, from Proto-Germanic breustą, from Proto-Indo-European bʰrews- — to break.

Ancestry of “brist”, step by step

StepLanguageWordMeaning
1Old Norsebrjóstbreast; person, personality; front
2Proto-Germanicbreustąbreast, chest
3Proto-Indo-Europeanbʰrews-to break
Every word from Proto-Indo-European bʰrews- →Every word from Proto-Germanic breustą →Every word from Old Norse brjóst →
brist — Etymology, Origin & Word History | Etymology Explorer