Proto-language
common ancestor of a language family
Proto-Tocharian
Proto-Athabaskan
Proto-Munda
Proto-Niger-Congo
Indo-Hittite
Proto-Torres–Banks
Proto-Micronesian
Proto-Admiralty Islands
Proto-Central Pacific
Proto-Finnic
Proto-Greek
Proto-Oceanic
Proto-Semitic
Proto-Polynesian
Proto-Norse
Proto-Dravidian
Proto-Balto-Slavic
Proto-Italic
Proto-Philippine
Proto-Albanian
Proto-Min
Proto-Altaic
Proto-Mixtec
Proto-Georgian-Zan
Proto-Indo-Aryan
Proto-Sino-Tibetan
Proto-Chinese
Proto-Kartvelian
Proto-Arabic
Proto-Berber
Proto-Uralic
Proto-Romanian
Proto-Korean
Proto-Mayan
Proto-Bantu
Proto-Romance
Proto-Turkic
Proto-Indo-European
Proto-Armenian
Proto-Iranian
Proto-Baltic
Proto-Nostratic
Proto-Austronesian
Proto-Kam–Sui
Proto-Quechua
Proto-Otomi
Proto-Inuit
Proto-Celtic
Proto-Tai
Proto-Germanic