The name comes from the Gaelic cill ( cell ) , and the name of Saint Marnoch or Mernoc who is also remembered in the name of Portmarnock in Ireland , and Inchmarnock . The name comes from the Gaelic cill ( church ) , and the name of Saint Marnoch or Mernoc who is also remembered in the name of Portmarnock in Ireland and Inchmarnock .