autogeny vs autogenesis

autogeny and autogenesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
autogeny	Yes	No	No	No
autogenesis	Yes	No	No	No

As nouns, autogeny and autogenesis are synonyms defined as:

autogeny and autogenesis: a hypothetical organic phenomenon by which living organisms are created from nonliving matter

Other synonyms of autogeny include abiogenesis, spontaneous generation.

autogeny (noun)	autogenesis (noun)
a hypothetical organic phenomenon by which living organisms are created from nonliving matter	a hypothetical organic phenomenon by which living organisms are created from nonliving matter