The general concensus among scholars is that 'Balla Moy' is derived from 'Bell Ami', i.e., good friend. 'Barley Mow' is a derivative of 'Balla Moy'. It eventually at some point may have been attached to celebrations of barley harvesting but originally it had nothing to do with barley directly. It would be interesting to research how far back the pub name 'The Barley Mow' can be traced.