The Collaborative International Dictionary of English v.0.48:

Winter \Win"ter\, v. i. [imp. & p. p. Wintered; p. pr. & vb.
   n. Wintering.]
   To pass the winter; to hibernate; as, to winter in Florida.
   [1913 Webster]

         Because the haven was not commodious to winter in, the
         more part advised to depart thence.      --Acts xxvii.
                                                  12.
   [1913 Webster]