The Indo-Aryan or Indic languages form a major language family of South Asia. They constitute a branch of the Indo-Iranian languages, themselves a branch of the Indo-European language family. As of the early 21st century more than 800 million people speak Indo-Aryan languages, primarily in India, Bangladesh, Nepal, Pakistan and Sri Lanka.
The Central Indo-Aryan languages or Hindi languages are a group of related language varieties spoken across North India and Central India.These language varieties form the central part of the Indo-Aryan language family, itself a part of the Indo-European language family.
Yokutsan languages; Yonaguni language; Yorùbá language; Yucatec Maya language; Yucatec Maya Sign Language ; Yuchi language; Yugur (also known as Yughur, (Turkic) Sarïgh Uyghur, and (Turkic) Yellow Uyghur, Turkic) Yukaghir languages; Yupik language (Eskimo–Aleut) Yurats language; Yurok language
Ethnologue lists 24 languages currently spoken in Bhutan, all of them in the Tibeto-Burman family, except Nepali, an Indo-Aryan language.  Until the 1980s, the government sponsored the teaching of Nepali in schools in southern Bhutan.
South Asia covers about 5.2 million km 2 (2.0 million sq mi), which is 11.71% of the Asian continent or 3.5% of the world's land surface area. The population of South Asia is about 1.891 billion or about one-fourth of the world's population, making it both the most populous and the most densely populated geographical region in the world.
The Indo-European languages are a family of several hundred related languages and dialects, including most major languages in Europe, the Iranian plateau, and South Asia. Historically, the language family was also important in Anatolia and Central Asia. The earliest Indo-European writing is from the Bronze Age in Anatolian and Mycenaean Greek.