Posted on 25th September 2015 by melyn Burm is the Cornish word for yeast Yes, yeast in Cornish is burm Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Kelvydh is the Cornish word for fashionableNext post: Daswerth is the Cornish word for resale