testify

/ˈtɛstɪfaɪ/

//ˈtɛstɪfaɪ// verb

By · According to Wiktionary data (CC BY-SA) ·

"testify" is a 7-letter English headword indexed on PlainSpell.

The verdict

“testify” has 11 generated spelling variants in the English index at frequency #9,114. The variants make it a useful spelling check.

#9,114
frequency rank, English
3,151
“T” headwords
11
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To make a declaration, or give evidence, under oath.

Corpus desk

Index EN-testify · testify · English

testify · rank #9,114 · 11 variants · 2 confusables

  • FREQ-COMMON #9,114
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 11 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH teammate

Nearest frequency peer: teammate (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “testify”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “testify” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

testify vs testing
71% similar
testify vs terrify
71% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for testify
PropertyValue
Headwordtestify
LanguageEnglish
Part of speechVerb
IPA/ˈtɛstɪfaɪ/
Letters7
Frequency rank#9,114
Misspellings tracked11
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “testify”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).testifylands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “teammate” (#9,113), “tolerate” (#9,115), “tasty” (#9,111). Among 3,151 “T” headwords, “testify” is #9,114. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around testify (IPA /ˈtɛstɪfaɪ/), averb. Corpus frequency is #9,114 among 3,151 “T” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for testify, with forms such as "etstify", "tesitfy", and "tesstify". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 2 confusable-pair relationships, "testing", "terrify", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: 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. The correct English form is testify, spelled T-E-S-T-I-F-Y.

Definition

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

Recorded use

Wiktionary examples

These source excerpts show how testify appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. It was only after a decade away from Skipton that I was finally able to garner the courage to return and testify against my abuser.
  2. One witness shall not testify against any person to cause him to die.

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.

Synonyms

bear witness

This word in other languages

testificar(Español)témoigner(Français)bezeugen(Deutsch)declarar(Português)

Common misspellings

Also misspelled as:

  • etstify
  • tesitfy
  • tesstify
  • testfiy
  • testiffy
  • testifyy
  • testiyf
  • testtify
  • tetsify
  • tsetify
  • ttestify

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of testify - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

etstify2tesitfy2tesstify1testfiy2testiffy1testifyy1testiyf2testtify1
Edit distance from "testify"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "testify"?
"testify" is spelled T-E-S-T-I-F-Y. The IPA pronunciation is /ˈtɛstɪfaɪ/.
What does "testify" mean?
As a verb, "testify" means: To make a declaration, or give evidence, under oath.
What words are commonly confused with "testify"?
"testify" is commonly confused with "testing", "terrify". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "testify"?
The IPA (International Phonetic Alphabet) transcription for "testify" is /ˈtɛstɪfaɪ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "testify"?
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. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "testify", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

treason#9,118vanilla#9,122Vermont#9,123smashed#9,100

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

tolerate11 variantsskating11 variantsagreeing11 variantsallocated11 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list