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Type Surname (from given name)
Usage Irish
Pronounced Pron. kaw-STEH-lo(English) kə-STEH-lo(English) KAW-stə-lo(English)  [key·IPA]

Meaning & History

Anglicized form of Gaelic Mac Oisdealbhaigh meaning "son of Oisdealbhach". The given name Oisdealbhach is derived from Irish os meaning "deer, fawn" and dealbhach meaning "resembling, shapely".
Added 12/1/2009 by rachelmary
Edited 4/29/2021 by HL