madderwort vs madder

madderwort and madder both are nouns.

Word	Noun	Adjective	Verb	Adverb
madderwort	Yes	No	No	No
madder	Yes	No	Yes	No

As nouns, madder is a hyponym of madderwort; that is, madder is a word with a more specific, narrower meaning than madderwort:

madderwort: any of numerous trees or shrubs or vines of the family Rubiaceae
madder: Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin

Other hyponyms of madderwort include Indian madder, munjeet, Rubia cordifolia, Rubia tinctorum.

madderwort (noun)	madder (noun)
any of numerous trees or shrubs or vines of the family Rubiaceae	Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin

madderwort (verb)	madder (verb)
	color a moderate to strong red