Someone wrote in [community profile] coaltide 2020-01-03 07:26 pm (UTC)

From Middle French cul, from Old French, from Latin cūlus, from Proto-Indo-European *kuH-l-, zero-grade without s-mobile form of *(s)kewH- (“to cover”).

Post a comment in response:

If you don't have an account you can create one now.
HTML doesn't work in the subject.
More info about formatting