protolanguage

listen to the pronunciation of protolanguage
İngilizce - İngilizce
{i} recorded or reconstructed ancestral language; assumed parent form of language or a group of connected languages
a language that is the recorded or hypthetical anecestor of one or more other languages Same as "Ursprache "
a language which was the common ancestor of related languages that form a language family
Language ancestral to several daughter languages