Posted on 25th December 2021 by melyn Fosforos is the Cornish word for phosphorus Yes, phosphorus in Cornish is fosforos Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Serri is the Cornish word for shutNext post: Gerdhal is the Cornish word for dyslexic