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’).
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
213,888
Historical Documents & Family Trees with Cosgrove
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