Where does “братоубийца” come from?

братоубийца (Russian) comes from Russian брат, from Old East Slavic братъ, from Proto-Slavic bratrъ, from Proto-Balto-Slavic brā́ˀtē, from Proto-Indo-European bʰréh₂tēr — brother.

братоубийца (Russian): fratricide, killer of one's brother

Definitions

  1. fratricide, killer of one's brother

Ancestry of “братоубийца”, step by step

братоубийца traces back through two separate lines of ancestry.

via Russian брат

StepLanguageWordMeaning
1Russianбратbrother; old boy, pal
2Old East Slavicбратъbrother
3Proto-Slavicbratrъbrother
4Proto-Balto-Slavicbrā́ˀtēbrother
5Proto-Indo-Europeanbʰréh₂tērbrother

via Russian уби́йца

StepLanguageWordMeaning
1Russianуби́йцаmurderer
Every word from Proto-Indo-European bʰréh₂tērEvery word from Proto-Balto-Slavic brā́ˀtēEvery word from Proto-Slavic bratrъ