evidence vs testify

evidence is a noun but testify is not a noun.

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

As verbs, testify is a hypernym of evidence; that is, testify is a word with a broader meaning than evidence:

evidence: provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
testify: provide evidence for

Other hypernyms of evidence include bear witness, evidence, prove, show.

As verbs, evidence and testify are synonyms defined as:

Other synonyms of evidence include bear witness, prove, show.

evidence (noun)	testify (noun)
your basis for belief or disbelief; knowledge on which to base belief
(law) all the means by which any alleged matter of fact whose truth is investigated at judicial trial is established or disproved
an indication that makes something evident

evidence (verb)	testify (verb)
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes	give testimony in a court of law
provide evidence for	provide evidence for
give evidence