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