noun
deponent
dih-POH-nunt/dɪˈpoʊnənt/
A person who gives testimony under oath, especially in a deposition.
The deponent signs the sworn statement before the notary.

Etymology
The image of 'putting down' connects with formally laying down testimony. A deponent is the person who makes a deposition, especially under oath.
In context
When a deponent participates in a divorce deposition, they are under oath
More examples
- The deponent asked the lawyer to repeat the question.
- Both deponents testified about the events leading to the accident.
- The court reporter prepared a transcript of the deponent's testimony.
Forms
deponent · deponents
depose verb — To question someone under oath formally.
deposition noun — Sworn testimony recorded outside a courtroom.
Similar words
- witness
- Broader term; may describe someone who observes rather than testifies.
- affiant
- Specifically someone who swears to a written statement.