The Collaborative International Dictionary of English v.0.48:

Derne \Derne\, v. t. & i. [AS. dyrnan to hide. See Dern, a.,
   Dearn, a.]
   To hide; to skulk. [Scot.]
   [1913 Webster]

         He at length escaped them by derning himself in a
         foxearth.                                --H. Miller.
   [1913 Webster]