Posted on 16th November 2017 by melyn Traytouri is the Cornish word for treachery Yes, treachery in Cornish is traytouri Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: ‘Happy Birthday!’ in Cornish is ‘Penn-bloodh Lowen!’Next post: Towargh is the Cornish word for peat