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Welsh in Irish (Breatnais): Meaning, Pronunciation, Usage

The Irish for Welsh is Breatnais, a feminine noun.
Updated October 2026Report a mistake

How to say “Welsh” in Irish

Irish:
Breatnais
English:
Welsh
Word type:
noun
Gender:
feminine
Pronunciation:
“BRAT-nish”  /ˈbʲɾʲatnˠəʃ/
Various forms
Genitive singular:
Breatnaise, na Breatnaise (e.g. foclóir Breatnaise, a Welsh dictionary)

What does “Breatnais” mean?

Welsh
The Celtic language spoken in Wales.Also: Welsh language, Cymraeg.

“Breatnais” with the article

Here is Breatnais after the article (an t-alt).

an Bhreatnais
the Welsh
Lenition: B becomes Bh after an (feminine noun)

“Breatnais” in a sentence: Irish examples

Common Irish sentences using Breatnais, the Irish word for Welsh.

Labhraíonn sí Breatnais go líofa.
She speaks Welsh fluently.
Tá beagáinín Breatnaise acu.
They speak a little Welsh.
Tá an Bhreatnais gaolmhar leis an mBriotáinis.
Welsh is related to Breton.
Cheannaigh mé leabhar Breatnaise inné.
I bought a Welsh book yesterday.
Tá mo chuid Breatnaise ag feabhsú.
My Welsh is improving.
Bhí an comhartha scríofa i mBreatnais agus i mBéarla.
The sign was written in Welsh and English.
Ba mhaith liom an Bhreatnais a fhoghlaim.
I would like to learn Welsh.

Other nouns in Irish

More everyday Irish nouns to learn next.

Welsh in Irish: frequently asked questions

What is the Irish for Welsh?

The Irish for Welsh is Breatnais (pronounced “BRAT-nish”). It’s a feminine noun.

How do you pronounce Breatnais in Irish?

Breatnais is said like “BRAT-nish” (IPA /ˈbʲɾʲatnˠəʃ/).

Does Breatnais have a plural?

No. Breatnais is a name, so it is used in the singular only.

Why does Breatnais change to Bhreatnais or mBreatnais?

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

What is the difference between Breatnais and Breatnach?

Breatnais is the Welsh language, while Breatnach means a Welsh person or, as an adjective, Welsh. 'An Bhreatain Bheag' is Wales itself.

Do I use the article with Breatnais?

Yes, as with other languages it often takes the article: 'an Bhreatnais', e.g. 'Tá an Bhreatnais deacair'. After verbs of speaking it is usually bare: 'Labhraíonn sé Breatnais'.

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