jurisprudence vs ancestral

jurisprudence is a noun but ancestral is not a noun.

Word	Noun	Adjective	Verb	Adverb
jurisprudence	Yes	No	No	No
ancestral	No	Yes	No	No

jurisprudence (noun)	ancestral (noun)
the branch of philosophy concerned with the law and the principles that lead courts to make the decisions they do
the collection of rules imposed by authority

jurisprudence (adjective)	ancestral (adjective)
	of or belonging to or inherited from an ancestor
	inherited or inheritable by established rules (usually legal rules) of descent