[ tes-tuh-fahy ]
/ ˈtɛs təˌfaɪ /
verb (used without object), tes·ti·fied, tes·ti·fy·ing.
to bear witness; give or afford evidence.
Law. to give testimony under oath or solemn affirmation, usually in court.
to make solemn declaration.
verb (used with object), tes·ti·fied, tes·ti·fy·ing.
to bear witness to; affirm as fact or truth; attest.
to give or afford evidence of in any manner.
Law. to state or declare under oath or affirmation, usually in court.
to declare, profess, or acknowledge openly.
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Origin of testify
1350–1400; Middle English testifyen<Latin testificārī to bear witness, equivalent to testi(s) witness + -ficārī-fy
OTHER WORDS FROM testifytes·ti·fi·er, nounpre·tes·ti·fy, verb (used with object), pre·tes·ti·fied, pre·tes·ti·fy·ing.re·tes·ti·fy, verb, re·tes·ti·fied, re·tes·ti·fy·ing.un·tes·ti·fy·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for testify
The second testifier was a wood-sawyer, who had occasion to spend a night in the house belonging to the farm.
British Dictionary definitions for testify
/ (ˈtɛstɪˌfaɪ) /
verb -fies, -fying or -fied
(when tr, may take a clause as object) to state (something) formally as a declaration of factI testify that I know nothing about him
law to declare or give (evidence) under oath, esp in court
(when intr, often foll by to) to be evidence (of); serve as witness (to)the money testified to his good faith
(tr) to declare or acknowledge openly
Derived forms of testifytestification, nountestifier, noun
Word Origin for testify
C14: from Latin testificārī, from testis witness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012