Last name origins & meanings:
- Irish: reduced Anglicized form of Gaelic Ó Duinn,
Ó Doinn ‘descendant of Donn’, a byname meaning
‘brown-haired’ or ‘chieftain’.
- English: nickname for a man
with dark hair or a swarthy complexion, from Middle English
- Scottish: habitational name
from Dun in Angus, named with Gaelic dùn
- Scottish: nickname from Gaelic donn
‘brown’. Compare 1.
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