Where does “croisade” come from?

croisade (Old French) comes from Old French crois, from Latin crux, from Proto-Italic *kruks, from Proto-Indo-European sḱer- — to caw, crow.

Ancestry of “croisade”, step by step

StepLanguageWordMeaning
1Old Frenchcroiscross; crossroads
2Latincruxwooden frame on which criminals were crucified,...
3Proto-Italic*kruks—
4Proto-Indo-Europeansḱer-to caw, crow

Words derived from “croisade”

Every word from Proto-Indo-European sḱer- →Every word from Proto-Italic *kruks →Every word from Latin crux →