Source : Webster's Revised Unabridged Dictionary (1913)

Ensconce \En*sconce"\, v. t. [imp. & p. p. {Ensconced}; imp. &
   p. p. {Ensconcing}.]
   To cover or shelter, as with a sconce or fort; to place or
   hide securely; to conceal.

         She shall not see me: I will ensconce me behind the
         arras.                                   --Shak.