əˈtɛst

ˈdɛmənstɹeɪt ˈɛvɪdəns ˈmæn.ɪ.fɛst ˈtɛstɪfaɪ authenticate, affirm to be true, genuine, or correct, as in an official capacity I attest this signature establish or verify the usage of This word is not attested until 1993 provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes His high fever attested to his illness The buildings in Rome manifest a high level of architectural sophistication This decision demonstrates his sense of fairness give testimony in a court of law