Posted on 23rd May 2017 by melyn Mestres is the Cornish word for mistress Yes, mistress in Cornish is mestres Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Aspians is the Cornish word for observationNext post: Brosweyth is the Cornish word for embroidery