testify
B2Գոյական/US /tˈɛstəfˌaɪ/ TĔST-əf-ī; UK /tˈɛstəfˌaɪ/ TĔST-əf-ī/
To make a solemn declaration, verbal or written, to establish some fact; to give testimony for the purpose of communicating to others a knowledge of something not known to them.
