Source : Webster's Revised Unabridged Dictionary (1913)

Anon \A*non"\, adv. [OE. anoon, anon, anan, lit., in one
   (moment), fr. AS. on in + [=a]n one. See {On} and {One}.]
   1. Straightway; at once. [Obs.]

            The same is he that heareth the word, and anon with
            joy receiveth it.                     --Matt. xiii.
                                                  20.

   2. Soon; in a little while.

            As it shall better appear anon.       --Stow.

   3. At another time; then; again.

            Sometimes he trots, . . . anon he rears upright.
                                                  --Shak.

   {Anon right}, at once; right off. [Obs.] --Chaucer.

   {Ever and anon}, now and then; frequently; often.

            A pouncet box, which ever and anon He gave his nose.
                                                  --Shak.

Source : WordNet®

anon
     n : sweet pulpy tropical fruit with thick scaly rind and shiny
         black seeds [syn: {sweetsop}, {sugar apple}]
     adv 1: at another time; "ever and anon"
     2: (old-fashioned or informal) in a little while; "see you
        anon"