disown Copy link • disown: diffĭteor, infĭtior: v. to disavow, deny. Phr.: I imagine it (the speech) may be d.'d, puto posse probari non esse meam, Cic.: to d. a father, son, patrem, filium abdicare, Curt.: Liv.; if on oath, ejurare (e. g. liberos), Sen.