Where does “Cruz” come from?

Cruz (English) comes from Spanish Cruz, from Portuguese cruz, from Italian croce, from Latin crux, from Proto-Italic *kruks, from Proto-Indo-European sḱer- — to caw, crow.

Ancestry of “Cruz”, step by step

Step	Language	Word	Meaning
1	Spanish	Cruz	cross
2	Portuguese	cruz	cross
3	Italian	croce	cross
4	Latin	crux	wooden frame on which criminals were crucified,...
5	Proto-Italic	*kruks	—
6	Proto-Indo-European	sḱer-	to caw, crow

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