Source : Webster's Revised Unabridged Dictionary (1913)

Chastity \Chas"ti*ty\, n. [F. chastet['e], fr. L. castitas, fr.
   castus. See {Chaste}.]
   1. The state of being chaste; purity of body; freedom from
      unlawful sexual intercourse.

            She . . . hath preserved her spotless chastity. --T.
                                                  Carew.

   2. Moral purity.

            So dear to heaven is saintly chastity, That, when a
            soul is found sicerely so A thousand liveried angels
            lackey her.                           --Milton.

   3. The unmarried life; celibacy. [Obs.] --Chaucer.

   4. (Literature & Art) Chasteness.

Source : WordNet®

chastity
     n 1: abstaining from sexual relations (as because of religious
          vows) [syn: {celibacy}, {sexual abstention}]
     2: morality with respect to sexual relations [syn: {virtue}, {sexual
        morality}]