The Collaborative International Dictionary of English v.0.48:

Inheritable \In*her"it*a*ble\, a.
   1. Capable of being inherited; transmissible or descendible;
      as, an inheritable estate or title. --Blackstone.
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   2. Capable of being transmitted from parent to child; as,
      inheritable qualities or infirmities.
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   3. [Cf. OF. enheritable, inheritable.] Capable of taking by
      inheritance, or of receiving by descent; capable of
      succeeding to, as an heir.
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            By attainder . . . the blood of the person attainted
            is so corrupted as to be rendered no longer
            inheritable.                          --Blackstone.
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            The eldest daughter of the king is also alone
            inheritable to the crown on failure of issue male.
                                                  --Blackstone.
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   Inheritable blood, blood or relationship by which a person
      becomes qualified to be an heir, or to transmit
      possessions by inheritance.
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