Where does “costra” come from?

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

costra (Spanish): crust; scab; snot

Definitions

  1. crust; scab; snot

Ancestry of “costra”, step by step

StepLanguageWordMeaning
1LatincrustaThe hard surface of a body; rind, shell, crust,...
2Proto-Italic*krustos—
3Proto-Indo-Europeankrustóshardened
4Proto-Indo-Europeankrews-to form a crust, begin to freeze
Every word from Proto-Indo-European krews- →Every word from Proto-Indo-European krustós →Every word from Proto-Italic *krustos →
costra — Etymology, Origin & Word History | Etymology Explorer