If you disinherit your child and say that he is no longer your son, this is an example of when you disavow him.
Origin of disavowMiddle English disavouen from Old French desavoer: see dis- and avow
transitive verbdis·a·vowed, dis·a·vow·ing, dis·a·vows
- To disclaim knowledge of, responsibility for, or association with: “The American communists … promoted Roosevelt's reelection in 1944—although Roosevelt formally disavowed their support” ( Donald A. Ritchie )
- To assert to be wrong or of little value: “After 1920 his style changed almost completely, and he disavowed his early works” ( Mary V. Dearborn )
Origin of disavowMiddle English disavowen from Old French desavouer des- dis- avouer to avow ; see avow .
(third-person singular simple present disavows, present participle disavowing, simple past and past participle disavowed)
- To refuse strongly and solemnly to own or acknowledge; to deny responsibility for, approbation of, and the like; to disclaim; to disown.
- He was charged with embezzlement, but he disavows the crime.
- To deny; to show the contrary of; to disprove.
- Because of her dissatisfaction, she now disavows the merits of fascism.
From dis- + avow or from Old French desavouer.