Source : Webster's Revised Unabridged Dictionary (1913)

Appropriable \Ap*pro"pri*a*ble\, a. [See {Appropriate}.]
   Capable of being appropriated, set apart, sequestered, or
   assigned exclusively to a particular use. --Sir T. Browne.

Source : WordNet®

appropriable
     adj : that can be appropriated; "appropriable funds"