The scholars referred to that source language as Proto-Indo-European. Proto-Indo-European is a reconstructed language.

学者们把这种源语言称为原始印欧语。原始印欧语是一种重建的语言。

youdao

Proto-Indo-European is a reconstructed language, meaning, it is what linguists concluded a parent language of Sanskrit, Latin and Greek would have to be like.

原始印欧语是一门经过重构得出的语言，也就是说，这就是语言学家总结出梵语、拉丁语和希腊语的母系语言的样子。

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Perhaps the most striking sign of mobility is the fact that by the third millennium B.C., most pastoralists in this huge region spoke related languages ancestral to the modern Indo-European languages.

可能在人口流动性方面最具说服力的标志是，公元前3000年，在这片广袤的土地上大部分牧民讲的相关语言，现代印欧语系就从中发展而来。

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He argues that the Indo-European proto-language diversified after the invention of the wheel, about 5, 000 years ago.

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These are Indo-European, Bantu, Austronesian (from South-East Asia and the Pacific) and Uto-Aztecan (the native vernaculars of the Americas).

ECONOMIST: The evolution of language: Babel or babble? | The

For their studies, the team studied the characteristics of word order in four language families: Indo-European, Uto-Aztec, Bantu and Austronesian.

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