The Collaborative International Dictionary of English v.0.48:

Transgressively \Trans*gress"ive*ly\, adv.
   [1913 Webster]

         Adam, perhaps, . . . from the transgressive infirmities
         of himself, might have erred alone.      --Sir T.
                                                  Browne.
   [1913 Webster] Transgressor \Trans*gress"or\, n. [L.: cf. F.
   transgresseur.]
   One who transgresses; one who breaks a law, or violates a
   command; one who violates any known rule or principle of
   rectitude; a sinner.
   [1913 Webster]

         The way of transgressors is hard.        --Prov. xiii.
                                                  15.
   [1913 Webster]