The Collaborative International Dictionary of English v.0.48:

Accouter \Ac*cou"ter\, Accoutre \Ac*cou"tre\, v. t. [imp. & p.
   p. Accoutered or Accoutred; p. pr. & vb. n. Accoutering
   or Accoutring.] [F. accouter, OF. accoutrer, accoustrer;
   [`a] (L. ad) + perh. LL. custor, for custos guardian,
   sacristan (cf. Custody), or perh. akin to E. guilt.]
   To furnish with dress, or equipments, esp. those for military
   service; to equip; to attire; to array.
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         Both accoutered like young men.          --Shak.
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         For this, in rags accoutered are they seen. --Dryden.
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         Accoutered with his burden and his staff. --Wordsworth.
   [1913 Webster] accoutered