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: reduced Anglicized form of Gaelic Ó Dornáin or Ó Doirnín ‘descendant of Doirnín’, a byname from a diminutive of dorn ‘fist’.