The Collaborative International Dictionary of English v.0.48:

Bemire \Be*mire"\, v. t. [imp. & p. p. Bemired; p. pr. & vb.
   n. Bemiring.]
   To drag through, encumber with, or fix in, the mire; to soil
   by passing through mud or dirt.
   [1913 Webster]

         Bemired and benighted in the dog.        --Burke.
   [1913 Webster]