In response to my brother:
Dis*own", v. t. [imp. & p. p. Disowned; p. pr. & vb. n. Disowning.] 1. To refuse to own or acknowledge as belonging to one's self; to disavow or deny, as connected with one's self personally; as, a parent can hardly disown his child; an author will sometimes disown his writings. 2. To refuse to acknowledge or allow; to deny.
Then they, who brother's better claim disown, Expel their parents, and usurp the throne. --Dryden.
Syn: To disavow; disclaim; deny; abnegate; renounce; disallow.