Cosgrove Family History
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Cosgrove Name Meaning
English: habitational name from Cosgrove in Northamptonshire, named with an Old English personal name Cof + Old English graf ‘grove’, ‘thicket’. Irish: surname adopted from English by bearers of the Gaelic name Ó Coscraigh ‘descendant of Coscrach’, a byname meaning ‘victorious’, ‘triumphant’ (from coscur ‘victory’, ‘triumph’).
Source: Dictionary of American Family Names ©2013, Oxford University Press