WELD (2)

Weld (?), n. [[OE. welde; akin to Scot. wald, Prov. G. waude, G. wau, Dan. & Sw. vau, D. wouw.]] 1. 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.]
2. 2. Coloring matter or dye extracted from this plant.