Where does “culaio” come from?

culaio (Italian) comes from Italian culo, 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 “culaio”, step by step

StepLanguageWordMeaning
1Italianculoass, bottom, buttocks, butt
2Latincūlusthe arse, ass
3Proto-Celtickūloscorner
4Proto-Indo-EuropeanḱuH-ló-—
5Proto-Indo-European(s)kewH-to cover, bedeck; cover
Every word from Proto-Indo-European (s)kewH- →Every word from Proto-Indo-European ḱuH-ló- →Every word from Proto-Celtic kūlos →