testify vs jurisprudence

testify is not a noun while jurisprudence is a noun.

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

testify (noun)	jurisprudence (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

testify (verb)	jurisprudence (verb)
give testimony in a court of law
provide evidence for