Where does “бераст” come from?

бераст (Belarusian) comes from Proto-Slavic berstъ, from Proto-Balto-Slavic berˀźtas, from Proto-Indo-European bʰerHǵ-tó-s, from Proto-Indo-European bʰerHǵós — birch.

бераст (Belarusian): elm

Definitions

Ancestry of “бераст”, step by step

Step	Language	Word	Meaning
1	Proto-Slavic	berstъ	elm
2	Proto-Balto-Slavic	berˀźtas	—
3	Proto-Indo-European	bʰerHǵ-tó-s	—
4	Proto-Indo-European	bʰerHǵós	birch

Every word from Proto-Indo-European bʰerHǵós →

бераст — Etymology, Origin & Word History | Etymology Explorer