Ó hEarnáin

Rev Patrick Woulfe
1923

Ó hEARNÁIN—IO Hernane, O Harnan, O Hortenan, Hernon, Harnon, Hartnane, Hertnan, Hertnon, (Heffernan); (1) 'descendant of Earnán' (diminutive of earna, knowing, experienced); and (2) a short form in Munster of Ó hIfearnáin, which see.

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