Family History and Genealogy Resources by Surname
Parnell Surname Origin
The same as Pernell, from Petronilla, Italian, pretty stone. A wanton, immodest girl.
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.
Parnell Surname Meaning and Family Facts
There is more to Parnell family history than the origin of your surname:
A Parnell Family History Thought:
'If man cares not for his roots, then how can he care for his branches?' --Doyle M Davis