The Collaborative International Dictionary of English v.0.48:

Weazen \Wea"zen\, a. [See Wizen.]
   Thin; sharp; withered; wizened; as, a weazen face.
   [1913 Webster]

         They were weazen and shriveled.          --Dickens.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

46 Moby Thesaurus words for "weazen":
   Sanforize, air-dry, anhydrate, attenuate, bake, blot, brush, burn,
   consume, cure, dehumidify, dehydrate, desiccate, drain, dry,
   dry up, emacerate, emaciate, evaporate, exsiccate, fire, insolate,
   kiln, macerate, mummify, parch, preshrink, rub, scorch, sear,
   shrink, shrivel, smoke, soak up, sponge, sun, sun-dry, swab, thin,
   torrefy, towel, waste, waste away, wipe, wither, wizen