Where does “*krustos” come from?

*krustos (Proto-Italic) comes from Proto-Indo-European krustós, from Proto-Indo-European krews- — to form a crust, begin to freeze.

Ancestry of “*krustos”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeankrustóshardened
2Proto-Indo-Europeankrews-to form a crust, begin to freeze

Words derived from “*krustos

Every word from Proto-Indo-European krews-