tes·ti·fy
(tĕśtə-fī́)
[Middle English testifien, from Latin testificārī, testis, witness, + -ficārī, -fy.]
verb: -fied, -fy·ing, -fies.
intransitive verb
- To make a declaration of truth or fact under oath; submit testimony: witnesses testifying before a grand jury.
- To express or declare a strong belief, especially to make a declaration of faith.
- To make a statement based on personal knowledge in support of an asserted fact; bear witness: the exhilaration of weightlessness, to which many astronauts have testified.
- To serve as evidence: wreckage that testifies to the ferocity of the storm.
transitive verb
- To declare publicly; make known: testifying their faith.
- To state or affirm under oath: testified in court that he saw the defendant.
- To bear witness to; provide evidence for. See synonyms at indicate
derivatives
- teśti·fi·cátion
- noun
- teśti·fíer
- noun