Posted on 16th February 2017 by melyn Kleves is the Cornish word for illness Yes, illness in Cornish is kleves Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: ‘Who are you?’ in Cornish is ‘Piw os ta?’Next post: Kanskradh is the Cornish word for centigrade