Disaffirm
Defined in 2 dictionaries — Black's (1910), Black's (1891)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
To repudiate; to revoke a consent once given; to recall an affirmance. To refuse one's subsequent sanction to a former act; to disclaim the intention of being bound by an antecedent transaction.
A Dictionary of Law
Henry Campbell Black · 1891
To repudiate; to ravoke a consent once given; to recall an affirmance. To rafuse one’s subsequent sanction to a former act; to disclaim the intention of being bound by an antecedent transaction.