Khoisan

The Khoisan languages (/ˈkɔɪsɑːn/ KOY-sahn; also Khoesan or Khoesaan) are a number of African languages once classified together, originally by Joseph Greenberg. Khoisan is defined as those languages that have click consonants and do not belong to other African language families. For much of the 20th century, they were thought to be genealogically related to each other, but this is no longer accepted. They are now held to comprise three distinct language families and two language isolates.

All but two Khoisan languages are indigenous to southern Africa; these are classified into three language families. The Khoe family appears to have migrated to southern Africa not long before the Bantu expansion. Ethnically, their speakers are the Khoekhoe and the San (Bushmen). Two languages of eastern Africa, those of the Sandawe and Hadza, were originally also classified as Khoisan, although their speakers are ethnically neither Khoekhoe nor San.