The Collaborative International Dictionary of English v.0.48:

Articled \Ar"ti*cled\, a.
   Bound by articles; apprenticed; as, an articled clerk.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Article \Ar"ti*cle\, v. t. [imp. & p. p. Articled; p. pr. &
   vb. n. Articling.] [Cf. F. articuler, fr. L. articulare.
   See Article, n., Articulate.]
   1. To formulate in articles; to set forth in distinct
      particulars.
      [1913 Webster]

            If all his errors and follies were articled against
            him, the man would seem vicious and miserable.
                                                  --Jer. Taylor.
      [1913 Webster]

   2. To accuse or charge by an exhibition of articles.
      [1913 Webster]

            He shall be articled against in the high court of
            admiralty.                            --Stat. 33
                                                  Geo. III.
      [1913 Webster]

   3. To bind by articles of covenant or stipulation; as, to
      article an apprentice to a mechanic.
      [1913 Webster]

WordNet (r) 3.0 (2006):

articled
    adj 1: bound by contract [syn: apprenticed, articled,
           bound, indentured]