chlamydeous vs chlamys

chlamydeous is not a noun while chlamys is a noun.

Word	Noun	Adjective	Verb	Adverb
chlamydeous	No	Yes	No	No
chlamys	Yes	No	No	No

chlamydeous (noun)	chlamys (noun)
	a short mantle or cape fastened at the shoulder; worn by men in ancient Greece
	collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils

chlamydeous (adjective)	chlamys (adjective)
having a floral envelope or perianth consisting of a calyx and/or corolla