evidence vs attest

evidence is a noun but attest is not a noun.

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

As verbs, evidence and attest are synonyms defined as:

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

Other synonyms of evidence include certify, demonstrate, manifest.

As verbs, attest is a hyponym of evidence; that is, attest is a word with a more specific, narrower meaning than evidence:

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

Other hyponyms of evidence include certify, demonstrate, evidence, manifest, presume, abduce, adduce, cite.

evidence (noun)	attest (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)	attest (verb)
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes	authenticate, affirm to be true, genuine, or correct, as in an official capacity
provide evidence for	provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
give evidence	give testimony in a court of law
	establish or verify the usage of