Family History and Genealogy Resources by Surname
Oigthierna Surname Origin
(Origin Gaelic) A term applied to the heir apparent to a lordship, from Oig, young, and tierna, a lord.
Source: 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.
Oigthierna Surname Meaning and Family Facts
There is more to Oigthierna family history than the origin of your surname:
A Oigthierna Family History Thought:
Whenever there's a will, you'll see an heir loom.