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Root cause in Irish (Bunchúis): Meaning, Pronunciation, Usage

The Irish for root cause is bunchúis, a feminine noun (plural bunchúiseanna).
Updated October 2026Report a mistake

How to say “root cause” in Irish

Irish:
bunchúis
English:
root cause
Word type:
noun
Gender:
feminine
Pronunciation:
“BUN-khoosh”  /ˈbˠʊnˌxuːʃ/
Various forms
Plural:
bunchúiseanna (root causes)
Genitive singular:
bunchúise, na bunchúise (e.g. fiosrú na bunchúise, investigation of the root cause)
Genitive plural:
bunchúiseanna, na mbunchúiseanna (e.g. aithint na mbunchúiseanna, identifying the root causes)

What does “bunchúis” mean?

root cause
The basic or underlying cause of something.Also: underlying cause, basic cause, primary cause, origin.

“Bunchúis” with the article

The plural of root cause in Irish is bunchúiseanna. Here is bunchúis after the article (an t-alt), in the singular and the plural.

an bhunchúis
the root cause
Lenition: b becomes bh after an (feminine noun)
na bunchúiseanna
the root causes
Plural: no change after na

“Bunchúis” in a sentence: Irish examples

Common Irish sentences using bunchúis, the Irish word for root cause.

Ní fios fós cad is bunchúis leis an tine.
The root cause of the fire is not yet known.
Is í an bhochtaineacht an bhunchúis.
Poverty is the underlying cause.
Caithfimid an bhunchúis a aimsiú ar dtús.
We must find the root cause first.
Rinne an coiste scrúdú ar na bunchúiseanna.
The committee examined the underlying causes.
Tá anailís na bunchúise críochnaithe anois.
The root cause analysis is now finished.
Bhí bunchúiseanna éagsúla leis an gcogadh.
The war had various underlying causes.
Sa bhunchúis atá an fhadhb, ní sna hairíonna.
The problem lies in the root cause, not the symptoms.

Other nouns in Irish

More everyday Irish nouns to learn next.

Root cause in Irish: frequently asked questions

What is the Irish for root cause?

The Irish for root cause is bunchúis (pronounced “BUN-khoosh”). It’s a feminine noun and the plural is bunchúiseanna.

How do you pronounce bunchúis in Irish?

Bunchúis is said like “BUN-khoosh” (IPA /ˈbˠʊnˌxuːʃ/).

What is the plural of root cause in Irish?

The plural of bunchúis is bunchúiseanna; with the article, na bunchúiseanna means “the root causes”. The genitive plural is bunchúiseanna, as in aithint na mbunchúiseanna (identifying the root causes).

Why does bunchúis change to bhunchúis or mbunchúis?

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

How does 'bunchúis' differ from 'cúis'?

'Cúis' is any cause or reason, while 'bunchúis' (bun + cúis) is the fundamental, underlying cause behind it.

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