specialty

specialty is a Noun

Definition:

[1] Particularity. Specialty of rule hath been neglected. Shak.

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

[3] 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.