Where does “krewp-o-s” come from?

krewp-o-s (Proto-Indo-European) comes from Proto-Indo-European krewp-, from Proto-Indo-European krew- — to fall, collapse; scab; to fall, break, bruise.

Ancestry of “krewp-o-s”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeankrewp-scab, crust; to become encrusted
2Proto-Indo-Europeankrew-to fall, collapse; scab; to fall, break, bruise
Every word from Proto-Indo-European krew- →Every word from Proto-Indo-European krewp- →