Source : Webster's Revised Unabridged Dictionary (1913)

Japan \Ja*pan"\, v. t. [imp. & p. p. {Japanned}; p. pr. & vb. n.
   {Japanning}.]
   1. To cover with a coat of hard, brilliant varnish, in the
      manner of the Japanese; to lacquer.

   2. To give a glossy black to, as shoes. [R.] --Gay.

Japanned \Ja*panned"\, a.
   Treated, or coated, with varnish in the Japanese manner.

   {Japanned leather},leather treated with coatings of Japan
      varnish, and dried in a stove. --Knight.

Source : WordNet®

japanned
     See {japan}

japan
     v : coat with a lacquer, as done in Japan
     [also: {japanning}, {japanned}]