Posted on 2nd June 20193rd June 2019 by melyn Marghnerth is the Cornish word for horse-power Yes, horse-power in Cornish is marghnerth Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Howlleski is the Cornish word for tanNext post: A-rag is the Cornish word for front