dyˈer's-rockˈet, dyˈer's-weld or dyˈer's-yellˈowweed noun

A plant (Reseda luteola), related to mignonette, yielding a yellow dye

dyˈer's-weed noun

A name for various plants that yield dyes (woad, weld, dyer's-greenweed, etc)

dyeˈstuff noun

A substance used in dyeing

dyeˈwood noun

Any wood from which material is obtained for dyeing

dyeˈ-work or dyeˈ-works noun

An establishment for dyeing

dye in the wool

To dye (the wool) before spinning, to give a more permanent result (dyed-in-the-wool adjective (figurative) (too) fixed in one's opinions or attitudes)

rocket² /rokˈit/

1. A cruciferous salad plant (Eruca sativa) of Mediterranean countries
2. Extended to dame's violet (genus Hesperis) and other plants of the same family (sea rocket Cakile; wall rocket Diplotaxis; yellow rocket winter cress, Barbarea) or of other families (blue rocket monkshood; larkspur; dyer's rocket weld)

weld² /weld/, or (Scot) wald /wäld/

1. A scentless species of mignonette, also known as dyer's rocket, yielding a yellow dye
2. The dye itself