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Ó Catharnaigh, Kearney, Ó Cearnaigh


The Surname Kearney is an anglicized form of Gaelic "Ó Catharnaigh" ‘descendant of Catharnach’, a byname meaning ‘warlike’ or ‘soldier’, and "Ó Cearnaigh", from cearnach ‘victorious’. Both surnames were widely distributed and are now very difficult to disentangle.