Proto-language (disambiguation)

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A proto-language is a hypothetical or reconstructed language from which a number of known languages are believed to have descended in historical linguistics.

Proto-language may also refer to:

• Proto-language (glottogony), primitive language-like systems or forms of communication posited in theories of the origin of language
• Proto-human language, a hypothetical ancestor of all the world's languages
• Musical protolanguage, a theory of the origins of music and vocal communication