ancillary

from WordNet (r) 3.0 (2006)

ancillary
    adj 1: furnishing added support; "an ancillary pump"; "an
           adjuvant discipline to forms of mysticism"; "The mind and
           emotions are auxiliary to each other" [syn: {accessory},
           {adjunct}, {ancillary}, {adjuvant}, {appurtenant},
           {auxiliary}]

from The Collaborative International Dictionary of English v.0.48

Ancillary \An"cil*la*ry\, a. [L. ancillaris, fr. ancilla a
   female servant.]
   Subservient or subordinate, like a handmaid; auxiliary.
   [1913 Webster]

         The Convocation of York seems to have been always
         considered as inferior, and even ancillary, to the
         greater province.                        --Hallam.
   [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

ANCILLARY. That which is subordinate on, or is. subordinate to, some other
decision. Encyc. Lond. 1

from Moby Thesaurus II by Grady Ward, 1.0

41 Moby Thesaurus words for "ancillary":
      accessory, accompanying, additional, adjuvant, another,
      appurtenant, assistant, assisting, attendant, attending, auxiliary,
      coincident, collateral, contributory, extra, farther, fostering,
      fresh, further, helping, incident, instrumental, ministerial,
      ministering, ministrant, more, new, nurtural, nutricial, other,
      plus, satellite, serving, spare, subservient, subsidiary,
      supernumerary, supplemental, supplementary, surplus, ulterior

[email protected]