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First name origins & meanings:

  1. Irish: Eager aide
  2. Irish: Eager aide

First name variations: Gahan

Last name origin & meaning:

Irish: reduced Anglicized form of Gaelic Ó Gallchobhair ‘descendant of Gallchobhar’, a personal name from the elements gall ‘strange’, ‘foreign’ + cabhair ‘help’, ‘support’.