Posted on 19th June 2020 by melyn Trymisyek is the Cornish word for quarterly Yes, quarterly in Cornish is trymisyek Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Kreswedhek is the Cornish word for mediumNext post: Ytho is the Cornish word for therefore