amaranthine vs amaranth

amaranthine is not a noun while amaranth is a noun.

Word	Noun	Adjective	Verb	Adverb
amaranthine	No	Yes	No	No
amaranth	Yes	No	No	No

amaranthine (noun)	amaranth (noun)
	any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food
	seed of amaranth plants used as a native cereal in Central and South America

amaranthine (adjective)	amaranth (adjective)
of or related to the amaranth plant
of an imaginary flower that never fades