(linguistics) The hypothetical ancestor language or protolanguage of Afroasiatic languages.

(linguistics) Of or pertaining to the Proto-Afroasiatic language, or the people who spoke it.

A hypothetical proto-language from which Old Turkic and all the other Turkic languages later emerged.

(linguistics, uncountable) The hypothetical ancestor language or protolanguage of Yeniseian languages spoken in central Siberia.

(anthropology) A person who spoke the Proto-Yeniseian language.

(linguistics, anthropology) Of or pertaining to the Proto-Yeniseian language, or the people who spoke it.

plural of Proto-Yeniseian

(linguistics) The theoretical proto-language of the Algonquian languages.

The reconstructed ancestor of all the Romance languages.

The hypothetical protolanguage of the Bantu languages.