Where does “escrein” come from?

escrein (Old French) comes from Middle Dutch scherm, from Old Dutch skirm, from Proto-West Germanic skirmi, from Proto-Germanic skirmiz, from Proto-Indo-European sḱer- — to caw, crow.

Ancestry of “escrein”, step by step

StepLanguageWordMeaning
1Middle Dutchschermprotective screen; protection, cover
2Old Dutchskirmprotection
3Proto-West Germanicskirmifur, hide, pelt; covering, shelter, screen
4Proto-Germanicskirmizfur, hide, pelt; covering, shelter, screen
5Proto-Indo-Europeansḱer-to caw, crow

Words derived from “escrein

Every word from Proto-Indo-European sḱer-Every word from Proto-Germanic skirmizEvery word from Proto-West Germanic skirmi