Last name origins & meanings:
- Irish (Limerick): Anglicized form of Gaelic Mac Aodha ‘son
of Aodh’, an ancient personal name meaning ‘fire’, originally
the name of a pagan god. Thus it has the same origin as McGee,
McKay and McKee.
- The McCoy clan of KY, led by Randolph McCoy, was involved in one of the bitterest mountain feuds, with the Hatfield clan of WV, from the Civil War to the end of the 19th century. The expression ‘the real McCoy’ probably originated with an
American boxer, Norman Selby (1873–1940), who adopted the name “Kid
McCoy” to distinguish himself from
another fighter of the same name.
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