The Collaborative International Dictionary of English v.0.48:

Inswathe \In*swathe"\, v. t. [imp. & p. p. Inswathed; p. pr. &
   vb. n. Inswating.]
   To wrap up; to infold; to swathe.
   [1913 Webster]

         Inswathed sometimes in wandering mist.   --Tennyson.
   [1913 Webster]