affiant

noun

af·​fi·​ant ə-ˈfī-ənt 

: one who swears to an affidavit

broadly : deponent

Examples of affiant in a Sentence

Recent Examples on the Web

Afterward, Kelly would tell them to put down his name as the affiant. — Eplunus Colvin, Arkansas Online, 2 Mar. 2023

Ramon Garcia, the affiant in the complaint, said that Phillips appeared to be scanning her backyard for something when the three dogs came through the fence. — Chris Spargo, People.com, 15 Apr. 2025

Based on the information/observations set forth in paragraph 22 ad 24, affiant believes that the target may utilize said firearm against law enforcement during the execution of the warrant. — Bruce Vielmetti, Milwaukee Journal Sentinel, 11 July 2019

The affiant is identified as a violent crimes detective with the Santa Fe County Sheriff's Department. — NBC News, 17 Dec. 2021

Your affiant submits this Criminal Complaint in support of the arrest of TEIXEIRA. — BostonGlobe.com, 14 Apr. 2023

Word History

Etymology

probably from affi(ance) entry 1 + -ant entry 1

First Known Use

1807, in the meaning defined above

Legal Definition

affiant

noun

af·​fi·​ant ə-ˈfī-ənt 

: a person who swears to an affidavit compare deponent, witness

Etymology

Middle French, from present participle of affier to pledge faith, swear, from Medieval Latin affidare, ultimately from Latin ad to + fidere to trust