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Deponent in Irish (Teisteoir): Meaning, Pronunciation, Usage

The Irish for deponent is teisteoir, a masculine noun (plural teisteoirí).
Updated October 2026Report a mistake

How to say “deponent” in Irish

Irish:
teisteoir
English:
deponent
Word type:
noun
Gender:
masculine
Pronunciation:
“TESH-tyor”  /ˈtʲɛʃtʲoːɾʲ/
Various forms
Plural:
teisteoirí (deponents)
Genitive singular:
teisteora, an teisteora (e.g. ráiteas an teisteora, the deponent's statement)
Genitive plural:
teisteoirí, na dteisteoirí (e.g. ainmneacha na dteisteoirí, the names of the deponents)

What does “teisteoir” mean?

deponent
A person who gives evidence or a sworn statement, especially in writing, as a witness.Also: testifier, witness, attester.

“Teisteoir” with the article

The plural of deponent in Irish is teisteoirí. Here is teisteoir after the article (an t-alt), in the singular and the plural.

an teisteoir
the deponent
No change after an
na teisteoirí
the deponents
Plural: no change after na

“Teisteoir” in a sentence: Irish examples

Common Irish sentences using teisteoir, the Irish word for deponent.

Shínigh an teisteoir an mionnscríbhinn os comhair an aturnae.
The deponent signed the affidavit before the solicitor.
Is teisteoir é sa chás seo.
He is a deponent in this case.
Léadh fianaise an teisteora sa chúirt.
The deponent's evidence was read in court.
Bhí triúr teisteoirí ag tabhairt fianaise.
Three deponents were giving evidence.
Ní raibh an teisteoir i láthair inniu.
The deponent was not present today.
Ceistíodh na teisteoirí go mion.
The deponents were questioned in detail.
Caithfidh gach teisteoir mionn a thabhairt.
Every deponent must take an oath.

Other nouns in Irish

More everyday Irish nouns to learn next.

Deponent in Irish: frequently asked questions

What is the Irish for deponent?

The Irish for deponent is teisteoir (pronounced “TESH-tyor”). It’s a masculine noun and the plural is teisteoirí.

How do you pronounce teisteoir in Irish?

Teisteoir is said like “TESH-tyor” (IPA /ˈtʲɛʃtʲoːɾʲ/).

What is the plural of deponent in Irish?

The plural of teisteoir is teisteoirí; with the article, na teisteoirí means “the deponents”. The genitive plural is teisteoirí, as in ainmneacha na dteisteoirí (the names of the deponents).

Why does teisteoir change to theisteoir or dteisteoir?

Irish changes the start of some words after certain words. After mo (my) teisteoir becomes mo theisteoir (lenition), and after ár (our) or i (in) it becomes ár dteisteoir (eclipsis).

How is 'teisteoir' different from 'finné'?

'Finné' is the everyday word for a witness, while 'teisteoir' is a formal legal term for someone who makes a sworn statement, a deponent.

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