indigenousness vs autochthony

indigenousness and autochthony both are nouns.

Word	Noun	Adjective	Verb	Adverb
indigenousness	Yes	No	No	No
autochthony	Yes	No	No	No

As nouns, indigenousness and autochthony are synonyms defined as:

indigenousness and autochthony: nativeness by virtue of originating or occurring naturally (as in a particular place)

Other synonyms of indigenousness include endemism.

indigenousness (noun)	autochthony (noun)
nativeness by virtue of originating or occurring naturally (as in a particular place)	nativeness by virtue of originating or occurring naturally (as in a particular place)