Posted on 7th May 2020 by melyn Tewhe is the Cornish word for thicken Yes, thicken in Cornish is tewhe Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Revya is the Cornish word for paddleNext post: Sewt is the Cornish word for suit