European bison
The word ‘zubr’ in English is a borrowing from , previously also used to denote one race of the European bison. The Polish "żubr" is similar to the word for the European bison in other modern Slavic languages, such as and . The noun for the European bison in all living Slavonic tongues is thought to be derived from Proto-Slavic: "*zǫbrъ" ~ "*izǫbrъ", which itself possibly comes from Proto-Indo-European: "*ǵómbʰ-" for tooth, horn or peg.