Proto-Indo-European(redirected from Proto-indoeuropean)
Pro·to-In·do-Eur·o·pe·an(prō′tō-ĭn′dō-yo͝or′ə-pē′ən) Abbr. PIE
The reconstructed language that was the ancestor of the Indo-European languages.
Of, relating to, or being Proto-Indo-European or one of its reconstructed linguistic features.
(Languages) the prehistoric unrecorded language that was the ancestor of all Indo-European languages
Pro•to-In•do-Eu•ro•pe•an(ˈproʊ toʊˌɪn doʊˌyʊər əˈpi ən)
the unattested prehistoric parent language of the Indo-European languages.