Family History and Genealogy Resources by Surname
Jonadab Surname Origin
(origin Hebrew) Liberal, one who acts a prince.
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.
Jonadab Surname Meaning and Family Facts
There is more to Jonadab family history than the origin of your surname:
A Jonadab Family History Thought:
What is past is prologue.