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Etymology

testify

/ˈtɛstɪfaɪ/

verb

Origin

Latin

testificari — to bear witness

Overview

Meaning Now

  • To bear witness to a fact or event, especially in a court of law.
  • To serve as evidence or proof of something.

Literal older meaning

to make a witness (of)

Language path

Latin → Old French → Middle English → English

Earliest form

testifien

Earliest period

14th century

Journey

The word is rooted in the Latin 'testis', which is the source of other legal terminology like 'testament' and 'attest'. In Roman law, the 'testis' was a third party who provided objective information about a dispute.

Evolution

  1. Latin

    testis

    “witness”

    Root noun for person who sees.

  2. Latin

    testificari

    “to bear witness”

    Compound of testis + facere (to make).

  3. Old French

    testifier

    “to testify”

  4. Middle English

    testifien

    “to witness”

Connections

Word parts

testi-

root

witness

-fy

suffix

to make or do

Related across languages

  • French

    témoigner

    to testify

  • Spanish

    testificar

    to testify

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External references use DefinedTerm semantics.