Family History and Genealogy Resources by Surname
Maddock Surname Origin
(Origin Welsh) The same as Madoc, a proper name common among the Welsh, from mad, good, and the termination oc or og, the same as the termination y or ous in English. The terminations c and ac, denote fixedness, force, plenitude. Og, in its simple form, signifies animation, activity; also, possessing that which precedes it; oc, greatness, grandeur; ox, quickness, promptitude.
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.
Maddock Surname Meaning and Family Facts
There is more to Maddock family history than the origin of your surname:
A Maddock Family History Thought:
'Every man is his own ancestor, and every man his own heir. He devises his own future, and he inherits his own past.' -- H. F. Hedge