# affidavit

> English word · Noun · IPA /ˌæfɪˈdeɪvɪt/ · frequency rank #17,534

## Definitions
1. A signed document wherein an affiant makes a sworn statement.

## Etymology
From Medieval Latin affidavit (“he has sworn”), the third person singular perfect tense of affido (“swear”), from fīdō, ultimately from Proto-Indo-European *bʰeydʰ- (“to command, to persuade, to trust”). Cognate to fidelity and faith (same Latin root), but not to affirm (shared Latin ad- prefix, but different Latin and Proto-Indo-European roots).

## Common misspellings (11)
`affdiavit`, `affiadvit`, `affidaivt`, `affidavitt`, `affidavti`, `affidavvit`, `affiddavit`, `affidvait`, `afidavit`, `afifdavit`, `fafidavit`

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