Posted on 30th November 20186th November 2018 by melyn Ewon is the Cornish word for foam Yes, foam in Cornish is ewon Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Omyttya is the Cornish word for omitNext post: Peulge is the Cornish word for railing