Family History and Genealogy Resources by Surname
Tiernay Surname Origin
(Origin Gaelic) Tighearna, a lord, a judge, a landed proprietor. See TournaySource: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
Tiernay Surname Meaning and Family Facts
Tiernay Last Name Meaning
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There is more to Tiernay family history than the origin of your surname:
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A Tiernay Family History Thought:
'If you would not be forgotten,
As soon as you are dead and rotten,
Either write things worthy of reading,
Or do things worthy of writing.' --Benjamin Franklin, May 1738