Proto-indo-european

праиндоевропе́йский

praindojevropéjskij

(pertaining to the Proto-Indo-European language, or the people who spoke it — see also Indo-European)

праиндоевропе́йский язы́к

praindojevropéjskij jazýk

(ancestor language of most European and Indian languages)

праиндоевропе́ец

praindojevropéjec

(person who spoke the Proto-Indo-European language)