Source : Webster's Revised Unabridged Dictionary (1913)

Specialty \Spe"cial*ty\, n.; pl. {Specialties}. [F.
   sp['e]cialit['e]. Cf. {Speciality}.]
   1. Particularity.

            Specialty of rule hath been neglected. --Shak.

   2. A particular or peculiar case. [Obs.]

   3. (Law) A contract or obligation under seal; a contract by
      deed; a writing, under seal, given as security for a debt
      particularly specified. --Chitty. --Bouvier. --Wharton
      (Law Dict.).

            Let specialties be therefore drawn between us.
                                                  --Shak.

   4. That for which a person is distinguished, in which he is
      specially versed, or which he makes an object of special
      attention; a speciality.

            Men of boundless knowledge, like Humbold, must have
            had once their specialty, their pet subject. --C.
                                                  Kingsley.