A proposed common ancestor to the group of Malayo-Sumbawan languages.

A proposed common ancestor to the group of Bungku-Tolaki languages.

(science fiction) Any of various early literature that contained elements that would develop into science fiction

plural of proto-neutron star

(stars) The degenerate core of a massive star, prior to its emergence after a supernova as a neutron star.

The reconstructed proto-language —having descended from Proto-Indo-Iranian— that is the immediate predecessor of Old Indo-Aryan.

(linguistics, historical) The formerly-hypothesized proto-language of the Central Algonquian languages, now recognized to be in effect Proto-Algonquian because Central Algonquian is not a genetic group.

(linguistics) The theoretical protolanguage which is the common ancestor of the Nilo-Saharan languages.

Alternative spelling of Proto-Afroasiatic

Alternative spelling of Proto-Afroasiatic