paternity vs paternal

paternity is a noun but paternal is not a noun.

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

paternity (noun)	paternal (noun)
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

paternity (adjective)	paternal (adjective)
	characteristic of a father
	relating to or characteristic of or befitting a parent
	belonging to or inherited from one's father
	related on the father's side