Posted on 17th August 2017 by melyn Purra is the Cornish word for thoroughest Yes, thoroughest in Cornish is purra Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: ‘What is this?’ in Cornish is ‘Pyth yw hemma?’Next post: Dyghtys is the Cornish word for treated