The Collaborative International Dictionary of English v.0.48:

Weald \Weald\, n. [AS. See Wold.]
   A wood or forest; a wooded land or region; also, an open
   country; -- often used in place names.
   [1913 Webster]

         Fled all night long by glimmering waste and weald,
         And heard the spirits of the waste and weald
         Moan as she fled.                        --Tennyson.
   [1913 Webster]

   Weald clay (Geol.), the uppermost member of the Wealden
      strata. See Wealden.
      [1913 Webster]

WordNet (r) 3.0 (2006):

weald
    n 1: an area of open or forested country