Where does “bruoleits” come from?

bruoleits (Latgalian) comes from Latgalian bruoļs, from Proto-Balto-Slavic brā́ˀtē, from Proto-Indo-European bʰréh₂tēr — brother.

Ancestry of “bruoleits”, step by step

StepLanguageWordMeaning
1Latgalianbruoļsbrother
2Proto-Balto-Slavicbrā́ˀtēbrother
3Proto-Indo-Europeanbʰréh₂tērbrother
Every word from Proto-Indo-European bʰréh₂tēr →Every word from Proto-Balto-Slavic brā́ˀtē →Every word from Latgalian bruoļs →