Where does “obřezávat” come from?

obřezávat (Czech) comes from Czech obřezat, from Czech řezat, from Old Czech řězati, from Proto-Slavic rězati, from Proto-Balto-Slavic *rḗˀźtei, from Proto-Indo-European wreh₁ǵ- — to break, tear.

Ancestry of “obřezávat”, step by step

StepLanguageWordMeaning
1Czechobřezatto circumcise to remove the foreskin from the penis
2Czechřezatto cut; to saw
3Old Czechřězatito cut
4Proto-Slavicrězatito cut, to slice; to crop, to shear; to trim
5Proto-Balto-Slavic*rḗˀźteito cut
6Proto-Indo-Europeanwreh₁ǵ-to break, tear
Every word from Proto-Indo-European wreh₁ǵ- →Every word from Proto-Balto-Slavic *rḗˀźtei →Every word from Proto-Slavic rězati →