testify

Meanings

1. 1
   verb

   To give evidence in a court of law, usually under oath.

   She agreed to testify against her former employer.

2. 2
   verb

   To be clear proof or evidence of something.

   The crowds testify to the band's huge popularity.

PIE word *tréyes From Middle English testifien, borrowed from Old French testifier, from Latin testificārī (“to bear witness”), from testis (“a witness”) + facere (“to make”). See -fy.

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