Languages without ISO 639-3 code but with Linguist List code

non-standard Latin variety spoken by the people of Ancient Rome

The Cimmerians were an ancient Eastern Iranic equestrian nomadic people originating in the Pontic–Caspian steppe, part of whom subsequently migrated into West Asia. Although the Cimmerians were culturally Scythian, they were ethnically distinct from the Scythians proper, to whom the Cimmerians were related and who displaced and replaced the Cimmerians.

constructed science-fiction language

historical Slavic language, ancestor of Belarusian, Rusyn, and Ukrainian; official, literary and spoken language of the Grand Duchy of Lithuania, Moldavian principality and East Slavic voivodeships of the Polish-Lithuanian Commonwealth

high-prestige form of the Latin language in the Roman Republic and Empire

progenitor of the North Germanic languages

extinct Germanic language

form of Latin used in the Middle Ages

extinct language

Russenorsk (; , ; English: Russo-Norwegian) is an extinct dual-source "restricted pidgin" language formerly used in the Arctic, which combined elements of Russian and Norwegian. Russenorsk originated from Russian traders from Kola (north-western Russia) and Norwegian fishermen from Tromsø (northern Norway). It was used extensively in Northern Norway for about 150 years in the Pomor trade. Russenorsk is important as a test case for theories concerning pidgin languages since it was used far away from most of the other documented pidgins of the world.

Galician–Portuguese ( or ; or ), also known as Old Galician–Portuguese, Galaic-Portuguese, or (in contexts focused on one of the modern languages) Old Galician, Old Portuguese, Medieval Galician or Medieval Portuguese, was a West Iberian Romance language spoken in the Middle Ages, in the northwest area of the Iberian Peninsula. It is both the ancestor language and historical period of development of modern Galician, Fala, Portuguese and Eonavian languages which maintain a high degree of mutual intelligibility.

extinct Canaanite dialect

extinct language formerly spoken by the Muromian tribe

extinct language in Russia territory

period of the Latin language

Gutnish ( ), or rarely Gutnic ( or ), is a North Germanic language spoken sporadically on the islands of Gotland and Fårö. The different dialects of Gutnish, while stemming from the Old Gutnish () variety of Old Norse, are sometimes considered part of modern Swedish. Gutnish exists in two variants, Mainland Gutnish (Storlandsgutamål or Storlandsmål), mostly spoken in the southern and southeastern portion of Gotland, where the dialect of Lau became the standard form on the Main Island (Lau Gutnish → Laumål), and Fårö Gutnish (Gutnish: Faroymal; ), spoken on the island of Fårö. UNESCO defines Gu

ancient Celtic language of Britain, ancestor to Welsh, Cornish, Breton and Cumbric

extinct language

Italo-Dalmatian variety mainly spoken in the central Italy

pidgin spoken in Iceland in the 17th century

extinct language

Pamir language of Afghanistan and Tajikistan

extinct Romance language

dialect

North Germanic language

Paishachi or Paisaci () is a largely unattested literary language of the middle kingdoms of India mentioned in Prakrit and Sanskrit grammars of antiquity. It is generally grouped with the Prakrits, with which it shares some linguistic similarities, but is still not considered a spoken Prakrit by the grammarians because it was purely a literary language, and because of its archaicism.

form of the Turkish language spoken in Anatolia from the 11th to 15th centuries

The Yamasees (also spelled Yamassees, Yemasees or Yemassees) were a multiethnic confederation of Native Americans who lived in the coastal region of present-day northern coastal Georgia near the Savannah River and later in northeastern Florida. The Yamasees engaged in revolts and wars with other Native groups and Europeans living in North America, specifically from Florida to North Carolina.

The Wenrohronon or Wenro people were an Indigenous peoples of the Northeastern Woodlands, historically from western New York and possibly northern Pennsylvania.

extinct Indo-European language

extinct language

extinct language

extinct West Slavic language

dialect of Kamassian language

Barranquenho () is a Romance linguistic variety spoken in the Portuguese town of Barrancos, near the Spanish border. It is a mixed language, and can be considered either a variety of Portuguese (Alentejan Portuguese) heavily influenced by the Spanish dialects of neighbouring areas in Spain in Extremadura and Andalusia (especially those from Encinasola and Rosal de la Frontera), or a Spanish dialect (Extremaduran / Andalusian) heavily influenced by Portuguese.

extinct unclassified language of the Near East

Yurumanguí language

Safaitic ( Al-Ṣafāʾiyyah) is a variety of the South Semitic scripts that was used by the Arabs in southern Syria and northern Jordan in the Ḥarrah region, to carve rock inscriptions in various dialects of Old Arabic and Ancient North Arabian. The Safaitic script is a member of the Ancient North Arabian (ANA) sub-grouping of the South Semitic script family, the genetic unity of which has yet to be demonstrated.

language

pidgin language last attested in 1710, in Canada

thumb|A bronze statue of a Tequesta warrior and his family on the Brickell Avenue Bridge, Miami, created by [[Manuel Carbonell.]] The Tequesta, also Tekesta, Tegesta, Chequesta, Vizcaynos, were a Native American tribe on the Southeastern Atlantic coast of Florida. They had infrequent contact with Europeans and had largely migrated by the middle of the 18th century.

ancient inscription relating visions of the seer of the gods Bala'am, son of Be'or

language

extinct Turkic language

group of closely related dialects spoken in the Swedish province of Jämtland

dialect of the Armenian language spoken in Yerevan

Svorsk () or Svorska () is a portmanteau of svensk(a) 'Swedish' and norsk(a) 'Norwegian' to describe a mixture of the Swedish and Norwegian languages. It could be translated as Sworwegian in English.

Guale was a historic Native American chiefdom of Mississippian culture peoples located along the coast of present-day Georgia and the Sea Islands. Spanish Florida established its Roman Catholic missionary system in the chiefdom in the late 16th century.

ethnic group

language

language

extinct Chibcha language, spoken by the Muisca of present-day Boyacá, Colombia

language

The Opelousa (also Appalousa) were an Indigenous people of the Southeastern Woodlands in Louisiana. They lived near present-day Opelousas, Louisiana, west of the lower Mississippi River, in the 18th century. At various times, they allied with the neighboring Atakapa and Chitimacha peoples.

language

Malaysian Malay dialect

The Jumanos were a tribe or several tribes, who inhabited a large area of western Texas, New Mexico, and northern Mexico, especially near the Junta de los Rios region with its large settled Indigenous population. They lived in the Big Bend area in the mountain and basin region. Spanish explorers first recorded encounters with the Jumano in 1581. Later expeditions noted them in a broad area of the Southwest and the Southern Plains.

Native American tribe

extinct Chibchan language of Costa Rica

Dargin language