Where does “bacule” come from?

bacule (French) comes from Old French bacul, from Old French cul, from Latin cūlus, from Proto-Celtic kūlos, from Proto-Indo-European ḱuH-ló-, from Proto-Indo-European (s)kewH- — to cover, bedeck; cover.

Ancestry of “bacule”, step by step

StepLanguageWordMeaning
1Old Frenchbacul—
2Old Frenchculbottom; the buttock
3Latincūlusthe arse, ass
4Proto-Celtickūloscorner
5Proto-Indo-EuropeanḱuH-ló-—
6Proto-Indo-European(s)kewH-to cover, bedeck; cover

Words derived from “bacule”

Every word from Proto-Indo-European (s)kewH- →Every word from Proto-Indo-European ḱuH-ló- →Every word from Proto-Celtic kūlos →