# testify

> English word · Verb · IPA /ˈtɛstɪfaɪ/ · frequency rank #9,114

## Definitions
1. To make a declaration, or give evidence, under oath.
2. To make a statement based on personal knowledge or faith.
3. To be evidence of.

## Etymology
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.

## Easily confused with
- **testing** (https://plainspell.com/en/vs/testify-vs-testing)
- **terrify** (https://plainspell.com/en/vs/terrify-vs-testify)

## Common misspellings (11)
`etstify`, `tesitfy`, `tesstify`, `testfiy`, `testiffy`, `testifyy`, `testiyf`, `testtify`, `tetsify`, `tsetify`, `ttestify`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/testify