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.
First name origins & meanings:
First name variations: Hilarius
Last name origin & meaning:
Portuguese (Hilário) and Spanish: from a personal name of the same origin as Hillary 1.
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