The Collaborative International Dictionary of English v.0.48:

Deplume \De*plume"\, v. t. [imp. & p. p. Deplumed; p. pr. &
   vb. n. Depluming.] [LL. deplumare; L. de- + plumare to
   cover with feathers, pluma feather: cf. deplumis featherless,
   and F. d['e]plumer.]
   1. To strip or pluck off the feather of; to deprive of of
      plumage.
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            On the depluming of the pope every bird had his own
            feather.                              --Fuller.
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   2. To lay bare; to expose.
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            The exposure and depluming of the leading humbugs of
            the age.                              --De Quincey.
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