The Collaborative International Dictionary of English v.0.48:

Legific \Le*gif"ic\ (l[-e]*j[i^]f"[i^]k), a. [L. lex, legis, law
   + -ficare (in comp.) to make. See -fy.]
   Of or pertaining to making laws.
   [1913 Webster]

         Practically, in many cases, authority or legific
         competence has begun in bare power.      --J. Grote.
   [1913 Webster]