Posted on 28th October 2014 by melyn Deklinya is the Cornish word for decline Yes, decline in Cornish is deklinya Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Frappyansek is the Cornish word for percussiveNext post: Ostyans is the Cornish word for accomodation