attest

To attest is to prove or declare to be true. For example: the fact that you aced the SAT attests to the strength of your vocabulary.

Attest and testify come from the same Latin word testari, which means "to declare." Although both words are kind of formal, you often testify in a courtroom, but attest doesn't require a court of law to function. You can attest to anything — that the funny looking shoes toned your thighs, that what someone says is true, or that the new acne medicine really works. To remember it, think of when you pass a test, you attest that you know the material.

Definitions of attest
  1. verb
    provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
    “His high fever attested to his illness”
    synonyms: certify, demonstrate, evidence, manifest
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    types:
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    authenticate
    establish the authenticity of something
    reflect
    give evidence of the quality of
    reflect
    give evidence of a certain behavior
    notarise, notarize
    authenticate as a notary
    condemn
    demonstrate the guilt of (someone)
    prove
    obtain probate of
    mirror
    reflect or resemble
    attaint
    condemn by attainder
    type of:
    bear witness, evidence, prove, show, testify
    provide evidence for
  2. verb
    authenticate; affirm to be true, genuine, or correct, as in an official capacity
    “I attest this signature”
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    type of:
    affirm, assert, aver, avow, swan, swear, verify
    to declare or affirm solemnly and formally as true
  3. verb
    establish or verify the usage of
    “This word is not attested until 1993”
    Synonyms:
    certify, demonstrate, evidence, manifest
    provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
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    type of:
    show
    give evidence of, as of records
  4. verb
    give testimony in a court of law
    synonyms: bear witness, take the stand, testify
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    types:
    vouch
    give personal assurance; guarantee
    type of:
    declare
    state emphatically and authoritatively
Word Family