Updated June 9, 2019

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Family name origins & meanings

  • Irish : reduced Anglicized form of Gaelic Ó Duinnshléibhe ‘descendant of Donn Sleibhe’ (see Dunleavy).
  • Altered spelling of Delaye, habitational name denoting someone from Lay (Loire), or from Laye (Hautes-Alpes, Eure, Loire, etc.).