Source : Webster's Revised Unabridged Dictionary (1913)

Inferable \In*fer"a*ble\ ([i^]n*f[~e]r"[.a]*b'l or
   [i^]n*f[e^]r"-; 277), a.
   Capable of being inferred or deduced from premises. [Written
   also {inferrible}.] --H. Spencer.

         A sufficient argument . . . is inferable from these
         premises.                                --Burke.