Posted on 22nd July 2013 by melyn Kammwonis is the Cornish word for blunder Yes, blunder in Cornish is kammwonis Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Offens is the Cornish word for offenceNext post: Polter is the Cornish word for powder