Irish: Anglicized form of Gaelic Mac Dhuibhshíthe ‘son of
Duibhshíth’, a personal name composed of the elements
dubh ‘black’ + síth ‘peace’. According to Woulfe,
this was originally a Scottish name (usually Anglicized there as
McPhee), which was taken to Antrim in the 16th century.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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