Posted on 25th March 20169th February 2016 by melyn Glawas is the Cornish word for rainfall Yes, rainfall in Cornish is glawas Photo by kohlmann.sascha Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Luck is the Cornish word for enoughNext post: R.e. is the Cornish word for e.g.