The Collaborative International Dictionary of English v.0.48:

Worthiness \Wor"thi*ness\, n.
   The quality or state of being worthy; desert; merit;
   excellence; dignity; virtue; worth.
   [1913 Webster]

         Who is sure he hath a soul, unless
         It see, and judge, and follow worthiness? --Donne.
   [1913 Webster]

         She is not worthy to be loved that hath not some
         feeling of her own worthiness.           --Sir P.
                                                  Sidney.
   [1913 Webster]

         The prayers which our Savior made were for his own
         worthiness accepted.                     --Hooker.
   [1913 Webster]

WordNet (r) 3.0 (2006):

worthiness
    n 1: the quality or state of having merit or value [ant:
         unworthiness]