בערק
'birch tree'

ETYMOLOGY

ON bjǫrk, OE beorc, Dutch berk; from PGmc ✱berkō- 'birch tree'; from PIE ✱bʰerh₁ǵ-eh₂-; OE birce, English birch, OS birka, OHG bircha, birihha, MHG birke, NHG Birke; from PGmc ✱berkjō(n)-
Related to the root of ✱berhta- 'bright', due to the whitish color of the birch tree.
cf. Yiddish בערעזע, Ukrainian бере́за, Belarusian бяро́за, Old Church Slavonic brěza, Russian берёза, Polish brzoza < Proto-Slavic ✱bèrza; Lithuanian béržas, Latvian bȩ̃rzs < Proto-Balto-Slavic ✱bérʔźos < ✱bʰerh₁ǵ-o/eh₂-; Sanskrit bhū́rja-