Where does “crucifixão” come from?

crucifixão (Portuguese) comes from Latin crucifixio, from Latin crucifixus, from Latin crucifigo, from Latin crux, from Proto-Italic *kruks, from Proto-Indo-European sḱer- — to caw, crow.

Ancestry of “crucifixão”, step by step

StepLanguageWordMeaning
1Latincrucifixiocrucifixion
2Latincrucifixuscrucified
3LatincrucifigoI crucify, fix on a cross
4Latincruxwooden frame on which criminals were crucified,...
5Proto-Italic*kruks
6Proto-Indo-Europeansḱer-to caw, crow
Every word from Proto-Indo-European sḱer-Every word from Proto-Italic *kruksEvery word from Latin crux