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Costello

Updated: June 9, 2019
Updated: June 9, 2019

Family name origins & meanings

  • Irish : reduced Anglicized form of Gaelic Mac Oisdealbhaigh ‘son of Oisdealbhach’, a personal name composed of the elements os ‘deer’, ‘fawn’ + dealbhach ‘in the form of’, ‘resembling’.

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