The mcdermott Surname
mcdermott Name Meaning and History
Irish: Anglicized form of Gaelic Mac Diarmada ‘son of
Diarmaid’, a personal name possibly composed of the separative
prefix di- + farmat ‘envy’, hence meaning ‘free from
envy’. This name was borne in Celtic legend by the lover of
Gráinne, and, in historical times, by Diarmaid Mac Murchadha, the
12th-century king of Leinster whose appeal to the English for support
led directly to the Anglo-Norman presence in Ireland. Mac Diarmada was
an important name in Connacht.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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