What is "woald"

Weld \Weld\ (w[e^]ld), n. [OE. welde; akin to Scot. wald, Prov. G. waude, G. wau, Dan. & Sw. vau, D. wouw.]

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. Coloring matter or dye extracted from this plant.

n. (alternative form of weld English)