Source : Webster's Revised Unabridged Dictionary (1913)

Colorable \Col"or*a*ble\, a.
   Specious; plausible; having an appearance of right or
   justice. ``Colorable pretense for infidelity.'' --Bp.
   Stillingfleet. -- {Col"or*a*ble*ness}, n. -- {Col"or*a*bly},
   adv.

         Colorable and subtle crimes, that seldom are taken
         within the walk of human justice.        --Hooker.