'Disavow' definitions:

Definition of 'disavow'

From: WordNet
verb
Refuse to acknowledge; disclaim knowledge of; responsibility for, or association with; "Her husband disavowed her after 30 years of marriage and six children" [ant: avouch, avow]

Definition of 'Disavow'

From: GCIDE
  • Disavow \Dis`a*vow"\, v. t. [imp. & p. p. Disavowed; p. pr. & vb. n. Disavowing.] [F. d['e]savouer; pref. d['e]s- (L. dis-) + avouer to avow. See Avow, and cf. 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. [1913 Webster]
  • A solemn promise made and disavowed. --Dryden. [1913 Webster]
  • 2. To deny; to show the contrary of; to disprove. [1913 Webster]
  • Yet can they never Toss into air the freedom of my birth, Or disavow my blood Plantagenet's. --Ford. [1913 Webster]