Where does “kruch” come from?

kruch (Old Polish) comes from Proto-Slavic kruxъ, from Proto-Balto-Slavic kraušas, from Proto-Indo-European krows-o-s, from Proto-Indo-European krews- — to form a crust, begin to freeze.

Ancestry of “kruch”, step by step

StepLanguageWordMeaning
1Proto-Slavickruxъchunk
2Proto-Balto-Slavickraušas
3Proto-Indo-Europeankrows-o-s
4Proto-Indo-Europeankrews-to form a crust, begin to freeze

Words derived from “kruch

Every word from Proto-Indo-European krews-Every word from Proto-Indo-European krows-o-sEvery word from Proto-Balto-Slavic kraušas