Proto-Indo-European

[proh-toh-in-doh-yoo r-uh-pee-uh n]

noun

the unattested prehistoric parent language of the Indo-European languages; Indo-European.

adjective

of or relating to Proto-Indo-European.

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British Dictionary definitions for proto-indo-european

Proto-Indo-European

noun

the prehistoric unrecorded language that was the ancestor of all Indo-European languages
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012