Disaffirm
Pronunciation : Dis`af*firm"
Part of Speech : v.
Definition : 1. To assert the contrary of; to contradict; to deny; -- said of that which has been asserted.
2. (Law)
Defn: To refuse to confirm; to annul, as a judicial decision, by a contrary judgment of a superior tribunal.
t.
Source : Webster's Unabridged Dictionary, 1913