Posted on 8th December 2016 by melyn Kenertha is the Cornish word for boost Yes, boost in Cornish is kenertha Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: ‘I need a holiday’ in Cornish is ‘Yma edhomm dhymm a dhy’goel’Next post: Ogh is the Cornish word for ugh