Disavow
Disavow , transitive verb
[French désavouer; pref. dés- (Latin dis-) + avouer to avow. See Avow, and compare Disavouch.]
1.
To refuse strongly and solemnly to own or acknowledge; to deny responsibility for, approbation of, and the like; to disclaim; to disown; as, he was charged with embezzlement, but he disavows the crime.
A solemn promise made and disavowed.
2.
To deny; to show the contrary of; to disprove.
Yet can they never
Toss into air the freedom of my birth,
Or disavow my blood Plantagenet's.