disinherit \dis`inher"it\, v. t. imp.  p. p. disinherited;
   p. pr.  vb. n. disinheriting. cf. disherit,
   disheir.
   1. to cut off from an inheritance or from hereditary
      succession; to prevent, as an heir, from coming into
      possession of any property or right, which, by law or
      custom, would devolve on him in the course of descent.
      1913 webster

            of how fair a portion adam disinherited his whole
            posterity                            --south.
      1913 webster

   2. to deprive of heritage; to dispossess.
      1913 webster

            and disinherit chaos, that reigns here. --milton.
      1913 webster
see also:
disinherited disinheriting disherit disheir 

disinherited
     adj : deprived of your rightful heritage