cudbear vs dyestuff

cudbear and dyestuff both are nouns.

Word	Noun	Adjective	Verb	Adverb
cudbear	Yes	No	No	No
dyestuff	Yes	No	No	No

As nouns, dyestuff is a hypernym of cudbear; that is, dyestuff is a word with a broader meaning than cudbear:

cudbear: a purplish dye obtained from orchil lichens
dyestuff: a usually soluble substance for staining or coloring e.g. fabrics or hair

Other hypernyms of cudbear include dye.

cudbear (noun)	dyestuff (noun)
a purplish dye obtained from orchil lichens	a usually soluble substance for staining or coloring e.g. fabrics or hair