Where does “crucefix” come from?

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

Ancestry of “crucefix”, step by step

StepLanguageWordMeaning
1Latincrucifixuscrucified
2LatincrucifigoI crucify, fix on a cross
3Latincruxwooden frame on which criminals were crucified,...
4Proto-Italic*kruks—
5Proto-Indo-Europeansḱer-to caw, crow
Every word from Proto-Indo-European sḱer- →Every word from Proto-Italic *kruks →Every word from Latin crux →