The Collaborative International Dictionary of English v.0.48:

Weld \Weld\ (w[e^]ld), n. [OE. welde; akin to Scot. wald, Prov.
   G. waude, G. wau, Dan. & Sw. vau, D. wouw.]
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   1. (Bot.) An herb (Reseda luteola) related to mignonette,
      growing in Europe, and to some extent in America; dyer's
      broom; dyer's rocket; dyer's weed; wild woad. It is used
      by dyers to give a yellow color. [Written also woald,
      wold, and would.]
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   2. Coloring matter or dye extracted from this plant.
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The Collaborative International Dictionary of English v.0.48:

Wold \Wold\, n. [OE. wold, wald, AS. weald, wald, a wood,
   forest; akin to OFries. & OS. wald, D. woud, G. wald, Icel.
   v["o]llr, a field, and probably to Gr. ? a grove, Skr.
   v[=a]?a a garden, inclosure. Cf. Weald.]
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   1. A wood; a forest.
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   2. A plain, or low hill; a country without wood, whether
      hilly or not.
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            And from his further bank Aetolia's wolds espied.
                                                  --Byron.
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            The wind that beats the mountain, blows
            More softly round the open wold.      --Tennyson.
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The Collaborative International Dictionary of English v.0.48:

Wold \Wold\, n.
   See Weld.
   [1913 Webster]

WordNet (r) 3.0 (2006):

wold
    n 1: a tract of open rolling country (especially upland)