The Collaborative International Dictionary of English v.0.48:

Pavilion \Pa*vil"ion\, v. t. [imp. & p. p. Pavilioned; p. pr.
   & vb. n. Pavilioning.]
   To furnish or cover with, or shelter in, a tent or tents.
   [1913 Webster]

         The field pavilioned with his guardians bright.
                                                  --Milton.
   [1913 Webster]