weld
noun
°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.
°The yellow coloring matter or dye extracted from this plant.
verb
°To bind together inseparably; to unite closely or intimately.
°To join two materials (especially two metals) together by applying heat, pressure and filler, either separately or in any combination.