0 related to the group of European and Asian languages that are spoken in most of Europe and in parts of Asia and that include English, French, Greek, Russian, and Hindi:
1 an ancient language that all Indo-European languages are thought to have developed from:
2 someone belonging to the group of people who speak Indo-European languages, or to a group of ancient people who spoke a language that these languages developed from:
The philologist William Jones identified the connections between Sanskrit and Latin and Greek, and first proposed that they all derived from a single language, Indo-European.
the relationship between certain consonants in Germanic languages and their originals in Indo-European
Both language groups stem from the same root in Indo-European.
Archaeologists have unearthed a skeleton which has yielded genetic evidence of Indo-Europeans reaching eastern Asia at least 2,000 years ago.
The simplest hypothesis is that one group of Indo-Europeans headed west, and those are the ones we now call the Celts.
