The Collaborative International Dictionary of English v.0.48:

Architectonic \Ar`chi*tec*ton"ic\, Architectonical
\Ar`chi*tec*ton"ic*al\, a. [L. architectonicus, Gr. ?. See
   Architect.]
   1. Pertaining to a master builder, or to architecture;
      evincing skill in designing or construction; constructive.
      "Architectonic wisdom." --Boyle.
      [1913 Webster]

            These architectonic functions which we had hitherto
            thought belonged.                     --J. C.
                                                  Shairp.
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   2. Relating to the systemizing of knowledge.
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