founding vs authorship

founding and authorship both are nouns.

Word	Noun	Adjective	Verb	Adverb
founding	Yes	No	No	No
authorship	Yes	No	No	No

As nouns, authorship is a hyponym of founding; that is, authorship is a word with a more specific, narrower meaning than founding:

founding: the act of starting something for the first time; introducing something new
authorship: the act of initiating a new idea or theory or writing

Other hyponyms of founding include paternity.

founding (noun)	authorship (noun)
the act of starting something for the first time; introducing something new	the act of creating written works
	the act of initiating a new idea or theory or writing