Posted on 8th June 2017 by melyn Seks is the Cornish word for sex Yes, sex in Cornish is seks Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: ‘Brilliant!’ in Cornish is ‘Splann!’Next post: Troghya is the Cornish word for immerse