Posted on 5th October 2018 by melyn Trethtegans is the Cornish word for constipation Yes, constipation in Cornish is trethtegans Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Keskeverek is the Cornish word for convergentNext post: Messejer is the Cornish word for messenger