Where does “otъbьrati” come from?

otъbьrati (Proto-Slavic) comes from Proto-Slavic bьrati, from Proto-Balto-Slavic bírāˀtei, from Proto-Indo-European bʰéreti, from Proto-Indo-European bʰēr- — shiny, light brown.

Ancestry of “otъbьrati”, step by step

otъbьrati traces back through two separate lines of ancestry.

via Proto-Slavic bьrati

StepLanguageWordMeaning
1Proto-Slavicbьratito pick up; to take
2Proto-Balto-Slavicbírāˀtei
3Proto-Indo-Europeanbʰéretito be carrying
4Proto-Indo-Europeanbʰēr-shiny, light brown

via Proto-Slavic otъ-

StepLanguageWordMeaning
1Proto-Slavicotъ-
Every word from Proto-Indo-European bʰēr-Every word from Proto-Indo-European bʰéretiEvery word from Proto-Balto-Slavic bírāˀtei