Posted on 9th March 2016 by melyn Diswaytyas is the Cornish word for disappoint Yes, disappoint in Cornish is diswaytyas Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Pedrek is the Cornish word for uprightNext post: Golgi is the Cornish word for watchdog