First name content excerpted from The Complete Idiot's Guide to 30,000 Baby Names © 2005 by Marcia Layton Turner. Buy this book online or call 1-800-253-6476.
Last name content copyright © 2006 Patrick Hanks.
Last name origin & meaning:
Irish: Anglicized form of Gaelic Mac Naois, a patronymic from a shortened form of the personal name Aonghus (see Angus).
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