Posted on 13th March 2016 by melyn Omsedhes is the Cornish word for subsidence Yes, subsidence in Cornish is omsedhes Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Analogieth is the Cornish word for analogyNext post: Kius is the Cornish word for canine