Posted on 26th May 2013 by melyn Kubek is the Cornish word for cubic Yes, cubic in Cornish is kubek Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Hedheuryer is the Cornish word for stopwatchNext post: Downrewi is the Cornish word for deep-freeze