accoutrement(n = noun.artifact) accessory, accouterment - clothing that is worn or carried, but not part of your main clothing; Array
is a kind of article of clothing, clothing, habiliment, vesture, wear, wearable
has particulars: belt, furnishing, trappings

   an item of clothing that is worn or carried, but not part of one's main clothing. [WordNet 1.5]

accoutrement, n. (US accouterment) (usu. in pl.)
1 equipment, trappings.
2 Mil. a soldier's outfit other than weapons and garments.

Etymology:
F (as ACCOUTRE)