An Irish surname meaning 'son of Oisdealbhach,' often anglicized from the Gaelic Mac Oisdealbhaigh. Notable bearers include comedian Lou Costello and musician Elvis Costello.
From Irish Mac Oisdealbhaigh, meaning 'son of Oisdealbhach,' where Oisdealbhach is an old Irish personal name possibly meaning 'god-like form.' The surname was brought to prominence by the de Angulo-Norman family who settled in Ireland in the 12th century.
The comedy duo Abbott and Costello's famous 'Who's on First?' routine is considered one of the greatest comedy sketches ever created, and it's actually in the Baseball Hall of Fame! Lou Costello was originally a stunt double in silent films before becoming a comedian.
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