authorship vs paternity

authorship and paternity both are nouns.

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

As nouns, authorship and paternity are synonyms defined as:

authorship and paternity: the act of initiating a new idea or theory or writing

authorship (noun)	paternity (noun)
the act of creating written works	the act of initiating a new idea or theory or writing
the act of initiating a new idea or theory or writing	the kinship relation between an offspring and the father
	the state of being a father