n A herb (Reseda luteola) related to mignonette, growing in Europe, and to some extent in America, used to make a yellow dye; dyer's broom; dyer's rocket; dyer's weed; wild woad.
v (transitive) To join two materials (especially two metals) together by applying heat, pressure and filler, either separately or in any combination.
n The state of being welded. (rfex|Not sure this is real, but was in MW 1913; couldn't find a cite for "in weld" on b.g.c. through 1913)