Where does “cuu” come from?

cuu (Old Portuguese) comes 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 “cuu”, step by step

StepLanguageWordMeaning
1Latincūlusthe arse, ass
2Proto-Celtickūloscorner
3Proto-Indo-EuropeanḱuH-ló-—
4Proto-Indo-European(s)kewH-to cover, bedeck; cover

Words derived from “cuu”

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