Dictionary
Pro•to-In•do-Eu•ro•pe•an
Pronunciation: (prō'tō-in"dō-yoor"u-pē'un), [key]—
n.
the unattested prehistoric parent language of the Indo-European languages; Indo-European.
—
adj.
of or pertaining to Proto-Indo-European.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.