(predominantly southern) Anglicized form of Gaelic
Ó Braonáin ‘descendant of Braonán’, a personal
name from a diminutive of braon ‘moisture’, ‘drop’. Compare
Breen.
(predominantly northern) Anglicized form of Gaelic
Ó Branáin ‘descendant of Branán’, a personal
name meaning ‘little raven’ (see Brannigan).
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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