Posted on 4th November 2016 by melyn Omdhoon is the Cornish word for behaviour Yes, behaviour in Cornish is omdhoon Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Fordhlet is the Cornish word for road-blockNext post: Kogforn is the Cornish word for cooker