What Language is Closest to Breton?

What Language is Closest to Breton? Exploring Its Celtic Connections

​When traveling through the picturesque landscapes of Brittany, you might notice signs in both French and another mysterious language — Breton. It’s one of the few remaining Celtic languages in Europe, but it might leave you wondering:

​What language is Breton most closely related to?

Breton: A Celtic Language

To understand Breton's closest linguistic relatives, it's essential to know where it comes from. Breton, or Brezhoneg in its native form, is a Celtic language. It belongs to the Brythonic branch of the Celtic language family, making it a cousin to Welsh and Cornish. But what exactly does that mean?
There are two main branches of Celtic languages:

1. Goidelic languages: This includes Irish, Scottish Gaelic, and Manx (spoken on the Isle of Man).
2. Brythonic languages: This includes Breton, Welsh, and Cornish.

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So, the languages that are closest to Breton are Welsh and Cornish.
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Breton’s Closest Cousin: Cornish

Among these, Cornish is Breton’s closest relative. Both languages descended from the language spoken by the ancient Britons before the Roman conquest of Britain. When the Anglo-Saxons invaded what is now England, many Britons fled southwest to Cornwall and across the sea to Brittany. This migration is why Cornish and Breton evolved from the same linguistic roots.
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If you compare Breton and Cornish, you’ll find similarities in grammar, vocabulary, and structure. Some words are almost identical. For example, the Breton word for "bread" is bara, while in Cornish, it's the same -- bara. These two languages were mutually intelligible centuries ago, but over time they have diverged somewhat due to geographic separation and the influence of other languages, especially French on Breton.
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Welsh: A Close Sibling

Welsh is also closely related to Breton, though slightly more distanced than Cornish. While Welsh and Breton speakers would not be able to understand each other in conversation, they share many linguistic similarities, particularly in basic words and grammatical structures. For instance, the word for "cat" in Breton is kazh, while in Welsh, it’s cath. In both languages, sentences follow a similar structure, with the verb often coming first.

Historically, both Breton and Welsh have faced repression by their respective governments. From 1880 to around 1950, the French authorities banned the use of Breton in schools, punishing those caught speaking it. Similarly, during the same period, Welsh schoolchildren were given the infamous "Welsh Not" — a piece of wood inscribed with ‘Welsh Not’ — as punishment for speaking Welsh. This practice was designed to stigmatize and discourage the use of their native language.
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Fortunately, such practices have long since ended, and today, there are strong efforts in both Wales and Brittany to preserve and revitalize their languages. Welsh has survived more robustly, with around 900,000 speakers, while Breton remains spoken by about 200,000 people, particularly in rural western Brittany. Both regions are committed to promoting their linguistic heritage, ensuring that these Celtic languages continue to thrive.

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Is Breton Like Gaelic?

Americans familiar with the Irish or Scottish Gaelic languages might wonder if Breton is related to these. While there is a connection — they are all Celtic languages — Breton is more distantly related to Irish and Scottish Gaelic. These languages fall under the Goidelic branch of Celtic, while Breton, as mentioned, is Brythonic. While there are some common elements due to their shared Celtic heritage, the two branches have diverged significantly over the centuries. For example, the word for "good" in Breton is mat, while in Irish Gaelic, it’s maith — similar, but not quite the same.
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Comparing Breton with Other Celtic Languages

English	Breton	Welsh	Cornish	Irish	French
Hello	Demat	Helo	Dydh da	Dia dhuit	Bonjour
Goodbye	Kenavo	Hwyl fawr	Duw genes	Slán	Au revoir
Please	Mar plij	Os gwelwch yn dda	Mar pleg	Le do thoil	S'il vous plaît
Thank you	Trugarez	Diolch	Meur ras	Go raibh maith agat	Merci
Yes	Ya	Ie	Yn	Tá	Oui
No	Nann	Na	Na	Níl	Non
Man	Den	Dyn	Den	Fear	Homme
Woman	Gwreg	Gwraig	Benyn	Bean	Femme
Boy	Paotr	Bachgen	Gorfen	Buachaill	Garçon
Girl	Plac'h	Merch	Myrgh	Cailín	Fille
Child	Bugel	Plentyn	Fleghes	Páiste	Enfant
Bread	Bara	Bara	Bara	Arán	Pain
Water	Dour	Dŵr	Dowr	Uisce	Eau
Dog	Ki	Ci	Ki	Madra	Chien
Cat	Kazh	Cath	Kath	Cat	Chat
Sun	Heol	Haul	Houl	Grian	Soleil
Moon	Loar	Lleuad	Loer	Gealach	Lune
House	Ti	Tŷ	Chi	Teach	Maison
Mountain	Menez	Mynydd	Menydh	Sliabh	Montagne
Sea	Mor	Môr	Mor	Muir	Mer
Cheers!	Yec’hed mat	Iechyd da	Yeghes da	Sláinte	Santé

​Observations:
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• Core Vocabulary: Words for natural elements like "sun" (heol, haul, houl) and "sea" (mor across all three Brythonic languages) show strong similarities between Breton, Welsh, and Cornish.
• Common Roots: Words like "water" (dour, dŵr, dowr) and "man" (den, dyn, den) highlight the shared Brythonic ancestry of Breton, Welsh, and Cornish.
• Distinct Influences: While Irish shares Celtic roots, words like "mountain" (sliabh) and "moon" (gealach) demonstrate its divergence as part of the Goidelic branch.
• Breton’s Celtic Roots: Breton shares its roots with other Celtic languages like Welsh and Cornish, part of the Brythonic branch, which helps explain many of the similarities in vocabulary and structure.
  
• Language Suppression: Breton faced suppression during the late 19th and early 20th centuries, particularly in schools, where children were punished for speaking it, much like the "Welsh Not" practice in Wales.
• Endangered Status: UNESCO has classified Breton as a 'seriously endangered' language, highlighting the urgent need for revitalization efforts to preserve it from disappearing within the 21st century.
• Modern Times and the Influence of French & English: In more recent times, Breton has been progressively pushed out of everyday use by the dominance of French and, increasingly, English. New technologies and lifestyles, such as the advent of the automobile, banking, and other modern technical fields, have led to the gradual disappearance of Breton in these domains. Historically, native speakers created neologisms such as marc’h-du (locomotive, lit. ‘black-horse’), marc’h-houarn (bicycle, lit. ‘iron-horse’), and karr-tan (automobile, lit. ‘fire-cart’). However, these Breton terms have largely been replaced by French and English equivalents, and even fluent speakers often unconsciously switch to French when discussing more technical or modern subjects.
  

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Why Is Breton Important Today?

Breton is a unique and ancient Celtic language that shares deep connections with its fellow Celtic languages, particularly Welsh and Cornish. Despite its rich heritage, Breton faces an uncertain future. UNESCO has classified Breton among the 'seriously endangered' languages of the world. This places it within the thousands of minority languages and dialects at risk of disappearing by the end of the 21st century.

Breton is more than just a language; it's a vital part of the cultural identity of Brittany. Despite its decline in everyday use, especially among younger generations, there has been a recent revival of interest in learning and preserving Breton. Schools known as Diwan immerse children in the Breton language from a young age, ensuring that the language survives for future generations.

As the world becomes more interconnected, preserving languages like Breton is essential not just for their linguistic value, but for the cultural identity and history they represent.  Understanding Breton’s linguistic connections is just one step in appreciating its importance and safeguarding it for future generations.

So, if you’re traveling to Brittany and want to connect with its rich Celtic past, learning a few Breton phrases might just be the perfect way to start. And if you already know a bit of Welsh or Cornish, you might find yourself understanding more than you expect!
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Looking for more resources about Breton language, continue below:
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What is it like for an English speaker to learn Breton?
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​Brezhoneg Living Dictionary: A Digital Gateway to the Breton Language
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Discovering the Breton Language: A Glimpse into a Rich Celtic Heritage
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