Frisian languages in the context of German dialect

The Germanic languages are a branch of the Indo-European language family spoken natively by a population of about 515 million people mainly in Europe, Northern America, Oceania, and Southern Africa. The most widely spoken Germanic language, English, is also the world's most widely spoken language with an estimated 2 billion speakers. All Germanic languages are derived from Proto-Germanic, spoken in Iron Age Scandinavia, Iron Age Northern Germany and along the North Sea and Baltic coasts.

The West Germanic languages include the three most widely spoken Germanic languages: English with around 360–400 million native speakers; German, with over 100 million native speakers; and Dutch, with 24 million native speakers. Other West Germanic languages include Afrikaans, an offshoot of Dutch originating from the Afrikaners of South Africa, with over 7.1 million native speakers; Low German, considered a separate collection of unstandardized dialects, with roughly 4.35–7.15 million native speakers and probably 6.7–10 million people who can understand it (at least 2.2 million in Germany (2016) and 2.15 million in the Netherlands (2003)); Yiddish, once used by approximately 13 million Jews in pre-World War II Europe, now with approximately 1.5 million native speakers; Scots, with 1.5 million native speakers; Limburgish varieties with roughly 1.3 million speakers along the Dutch–Belgian–German border; and the Frisian languages with over 500,000 native speakers in the Netherlands and Germany.

German dialects are the various traditional local varieties of the German language. Though varied by region, those of the southern half of Germany beneath the Benrath line are dominated by the geographical spread of the High German consonant shift, and the dialect continuum that connects High German to the neighboring varieties of Low Franconian (Dutch) and Low German.

The varieties of German are conventionally grouped into Upper German, Central German and Low German; Upper and Central German form the High German subgroup. Standard German is a standardized form of High German, developed in the early modern period based on a combination of Central German and Upper German varieties.

The West Germanic languages constitute the largest of the three branches of the Germanic family of languages (the others being the North Germanic and the extinct East Germanic languages). The West Germanic branch is classically subdivided into three branches: Ingvaeonic, which includes English, Scots, the Low German languages, and the Frisian languages; Istvaeonic, which encompasses Dutch and its close relatives; and Irminonic, which includes German and its close relatives and variants.

English is by far the most widely spoken West Germanic language, with over one billion speakers worldwide. Within Europe, the three most prevalent West Germanic languages are English, German, and Dutch. Frisian, spoken by about 450,000 people, constitutes a fourth distinct variety of West Germanic. The language family also includes Afrikaans, Yiddish, Low Saxon, Luxembourgish, Hunsrik, and Scots. Additionally, several creoles, patois, and pidgins are based on Dutch, English, or German.

Low German is a West Germanic language spoken mainly in Northern Germany and the northeastern Netherlands. The dialect of Plautdietsch is also spoken in the Russian Mennonite diaspora worldwide. "Low" refers to the altitude of the areas where it is typically spoken.

Low German is most closely related to Frisian and English, with which it forms the North Sea Germanic group of the West Germanic languages. Like Dutch, it has historically been spoken north of the Benrath and Uerdingen isoglosses, while forms of High German (of which Standard German is a standardized example) have historically been spoken south of those lines. Like Frisian, English, Dutch and the North Germanic languages, Low German has not undergone the High German consonant shift, as opposed to Standard High German, which is based on High German dialects. Low German evolved from Old Saxon (Old Low German), which is most closely related to Old Frisian and Old English (Anglo-Saxon).

West Frisian (Westerlauwersk Frysk; Dutch: Westerlauwers Fries), or simply Frisian (Frysk [frisk]; Dutch: Fries [fris]), is a West Germanic language spoken mostly in the province of Friesland (Fryslân) in the north of the Netherlands, mostly by those of Frisian ancestry. It is the most widely spoken of the Frisian languages.

In the study of the evolution of English, West Frisian is notable as being the most closely related foreign tongue to the various dialects of Old English spoken across the Heptarchy, these being part of the Anglo-Frisian branch of the West Germanic family.

North Frisian is a minority language of Germany, spoken by about 10,000 people in North Frisia. The language is part of the larger group of the West Germanic Frisian languages. The language comprises 10 dialects which are themselves divided into an insular and a mainland group.

North Frisian is closely related to the Saterland Frisian language of Northwest Germany and West Frisian which is spoken in the Netherlands. All of these are also closely related to the English language forming the Anglo-Frisian group.

The Frisians (/ˈfriːʒənz/) are an ethnic group indigenous to Northwestern Europe on the coastal regions of northern Netherlands, north-western Germany and southern Denmark. They inhabit an area known as Frisia and are concentrated in the Dutch province of Friesland and, in Germany, East Frisia and North Frisia (which was a part of Denmark until 1864).

The Frisian languages are spoken by more than 500,000 people; West Frisian is officially recognised in the Netherlands (in the Dutch province Friesland) while North Frisian and Saterland Frisian are recognised as regional languages in Germany.

The Anglo-Frisian languages are a proposed sub-branch of the West Germanic languages encompassing the Anglic languages (English, Scots, extinct Fingallian, and extinct Yola) as well as the Frisian languages (North Frisian, East Frisian, and West Frisian). While this relationship had considerable support historically, many modern scholars have criticized it as a valid phylogenetic grouping. Instead, they believe that the Ingvaeonic languages comprised a dialect continuum which stretched along the North Sea, finally diverging into distinct languages – Old English, Pre–Old Frisian, and Old Saxon – during the Migration Period in the 5th century. There are still proponents of an Anglo-Frisian node in the West Germanic tree, citing strong archeological and genetic evidence for the comingling of these groups. In the 1950s, Hans Kuhn argued that the two languages diverged at the Ingvaeonic level, but later "converged". He argued that this convergence explained the striking similarity of the two languages while also explaining the issues in chronology. This view has been dismissed as improbable given the geographic divide.

The Anglo-Frisian languages have been distinguished from other West Germanic languages due to several sound changes: besides the Ingvaeonic nasal spirant law, which is present in Low German as well, Anglo-Frisian brightening and palatalization of /k/ are for the most part unique to the modern Anglo-Frisian languages:

Old Frisian was a West Germanic language spoken between the late 13th century and the end of 16th century. It is the common ancestor of all the modern Frisian languages except for the Insular North Frisian dialects, with which Old Frisian shares a common ancestor called Pre–Old Frisian or Proto-Frisian. Old Frisian was spoken by contemporary Frisians who comprised a loose confederacy along the North Sea coast from around modern-day Bruges in Belgium to the Weser in modern-day northern Germany, dominating maritime trade. The vast majority of the surviving literature comprises legal documents and charters, though some poetry, historiographies, and religious documents are attested as well.

Old Frisian was closely related to and shared common characteristics with the forms of English and Low German spoken during the period. Although earlier scholarship contended that Frisian and English had a closer relationship to each other than to Low German, this is no longer the prevailing view. Old Frisian evolved into Middle Frisian around the turn of the 17th century, being largely pushed out by the emergence of Middle Low German as the language of trade in the North Sea. Scholars have argued that the term "Old Frisian" is somewhat misleading, since Old Frisian was contemporary with other Germanic languages during their "Middle" period, such as Middle English and Middle High German.

East Frisian is one of the Frisian languages. Its last surviving dialect is Saterland Frisian spoken in Saterland in Germany. The language is not to be confused with the East Frisian dialect of the Low German language, which is often likewise referred to as "East Frisian".

There once were two main dialects, Ems [nl] and Weser. Weser, including the Wursten dialect, Harlingerland dialect and Wangerooge dialect, held out until the 20th century. Ems continues with a couple thousand adult speakers of the Saterland dialect. The other member of the Ems dialect, Upgant Frisian, is extinct.

Saterland Frisian, also known as Sater Frisian, Saterfrisian or Saterlandic (Seeltersk [ˈseːltɐsk]), spoken in the Saterland municipality of Lower Saxony in Germany, is the last living dialect of the East Frisian language. It is closely related to the other Frisian languages: North Frisian, spoken in Germany as well, and West Frisian, spoken in the Dutch province of Friesland.

East Frisian Low Saxon, East Frisian Low German or simply (but ambiguously) East Frisian is a Northern Low Saxon dialect spoken in the East Frisian peninsula of northwestern Lower Saxony.

East Frisian Low Saxon is not to be confused with the East Frisian language; the latter, spoken by about 2,000 individuals in the municipality of Saterland, is a Frisian language, while East Frisian Low Saxon is a dialect of the Low German language.