The Collaborative International Dictionary of English v.0.48:

Adjoin \Ad*join"\, v. t. [imp. & p. p. Adjoined; p. pr. & vb.
   n. Adjoining.] [OE. ajoinen, OF. ajoindre, F. adjoindre,
   fr. L. adjungere; ad + jungere to join. See Join, and cf.
   Adjunct.]
   To join or unite to; to lie contiguous to; to be in contact
   with; to attach; to append.
   [1913 Webster]

         Corrections . . . should be, as remarks, adjoined by
         way of note.                             --Watts.
   [1913 Webster]