Indo-European Indo-European /ˌɪndoʊˌjʊrəˈpiːən/

adjective

1. Of or relating to the former Indo-European people  ( Aryan , Indo-Aryan , Indo-European )
   of or relating to the former Indo-European people
    Indo-European migrations
   Indo-European migrations
   
2. Of or relating to the Indo-European language family  ( Indo-European , Indo-Germanic )
   of or relating to the Indo-European language family
   

noun

1. The family of languages that by 1000 BC were spoken throughout Europe and in parts of southwestern and southern Asia  ( Indo-European , Indo-European language , Indo-Hittite )
   the family of languages that by 1000 BC were spoken throughout Europe and in parts of southwestern and southern Asia
   
2. A member of the prehistoric people who spoke Proto-Indo European  ( Aryan , Indo-European )
   a member of the prehistoric people who spoke Proto-Indo European