Posted on 18th May 2017 by melyn Gwerek is the Cornish word for useful Yes, useful in Cornish is gwerek Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: ‘I don’t want to do my homework’ in Cornish is ‘Ny vynnav gul ow ober tre’Next post: Howtyn is the Cornish word for haughty