autochthony vs nativeness

autochthony and nativeness both are nouns.

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

As nouns, nativeness is a hypernym of autochthony; that is, nativeness is a word with a broader meaning than autochthony:

autochthony: nativeness by virtue of originating or occurring naturally (as in a particular place)
nativeness: the quality of belonging to or being connected with a certain place or region by virtue of birth or origin

autochthony (noun)	nativeness (noun)
nativeness by virtue of originating or occurring naturally (as in a particular place)	the quality of belonging to or being connected with a certain place or region by virtue of birth or origin