Submitted NameRevisions Save Type Surname (from given name) Usage Irish Edit Status Status [show contributorshide contributors] Added 5/9/2014 by anonymous Edited 5/4/2015 by Beautiful Victory Meaning & History A variant of the traditionally Irish surname Hennessey or Hennessy, an Anglicization of Ó hAonghusa meaning "‘descendant of Aonghus".
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