The Collaborative International Dictionary of English v.0.48:
Speciality \Spe`ci*al"i*ty\, n.; pl. Specialities. [See
Special, and Specialty.]
1. A particular or peculiar case; a particularity. --Sir M.
2. (Law) See Specialty, 3.
3. The special or peculiar mark or characteristic of a person
or thing; that for which a person is specially
distinguished; an object of special attention; a special
occupation or object of attention; a specialty.
On these two general heads all other specialities
are depedent. --Hooker.
Strive, while improving your one talent, to enrich
your whole capital as a man. It is in this way that
you escape from the wretched narrow-mindedness which
is the characteristic of every one who cultivates
his speciality. --Ld. Lytton.
We 'll say, instead, the inconsequent creature man,
For that'a his speciality. --Mrs.
Think of this, sir, . . . remote from the impulses
of passion, and apart from the specialities -- if I
may use that strong remark -- of prejudice.
4. An attribute or quality peculiar to a species.