Source : Webster's Revised Unabridged Dictionary (1913)

Iniquity \In*iq"ui*ty\, n.; pl. {Iniquities}. [OE. iniquitee, F.
   iniquit['e], L. iniquitas, inequality, unfairness, injustice.
   See {Iniquous}.]
   1. Absence of, or deviation from, just dealing; want of
      rectitude or uprightness; gross injustice;
      unrighteousness; wickedness; as, the iniquity of bribery;
      the iniquity of an unjust judge.

            Till the world from his perfection fell Into all
            filth and foul iniquity.              --Spenser.

   2. An iniquitous act or thing; a deed of injustice o?
      unrighteousness; a sin; a crime. --Milton.

            Your iniquities have separated between you and your
            God.                                  --Is. lix. 2.

   3. A character or personification in the old English
      moralities, or moral dramas, having the name sometimes of
      one vice and sometimes of another. See {Vice}.

            Acts old Iniquity, and in the fit Of miming gets the
            opinion of a wit.                     --B. Jonson.