ecdemic vs endemic

ecdemic is not a noun while endemic is a noun.

Word	Noun	Adjective	Verb	Adverb
ecdemic	No	Yes	No	No
endemic	Yes	Yes	No	No

ecdemic (noun)	endemic (noun)
	a plant or animal that is native to a certain limited area
	a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location

ecdemic (adjective)	endemic (adjective)
of or relating to a disease that originates outside the locality in which it occurs	of or relating to a disease (or anything resembling a disease) constantly present to greater or lesser extent in a particular locality
	native to or confined to a certain region
	originating where it is found