Posted on 14th June 2017 by melyn Keworansus is the Cornish word for supplementary Yes, supplementary in Cornish is keworansus Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Skantys is the Cornish word for pantiesNext post: ‘Last year’ in Cornish is ‘Warlyna’