preambulary

from The Collaborative International Dictionary of English v.0.48

Preambulary \Pre*am"bu*la*ry\, a. [Cf. OF. preambulaire.]
   Of or pertaining to a preamble; introductory; contained or
   provided for in a preamble. "A preambulary tax." [R.]
   --Burke.
   [1913 Webster]