An economic and political union established in 1993 after the ratification of the Maastricht Treaty by members of the European Community and since expanded to include numerous Central and Eastern European nations. The establishment of the European Union expanded the political scope of the European Economic Community, especially in the area of foreign and security policy, and provided for the creation of a central European bank and the adoption of a common currency, the euro.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.