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Meaning and Origin of: Shannon

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First name origins & meanings:

  • Irish : Wise one; river name
  • Irish : Old

First name variations

Last name origin & meaning:

  • Irish : reduced form of Shanahan.
  • Irish : reduced Anglicized form of Gaelic Ó Seanáin ‘descendant of Seanán’, a personal name based on a pet form of seán ‘old’.
  • Irish : in County Clare, a reduced Anglicized form of Mac Giolla tSeanáin ‘son of the servant of St. Seanán’. In the Irish midlands Leonard and Nugent have been adopted as equivalents of this name.

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