disown

verb3

1. •
   To refuse to own, or to refuse to acknowledge one’s own.

   • Lord Capulet and his wife threatened to disown their daughter Juliet if she didn’t go through with marrying Count Paris.
2. •
   To repudiate any connection to; to renounce.

   • He disowns me, and he scorns me / But when we're alone he tells me I'm his very own — 1968
3. •
   To detach (a job or process) so that it can continue to run even when the user who launched it ends his/her login session.