A historical region of west-central France bordering on the Bay of Biscay. A part of the Roman province of Aquitania, it fell to the Visigoths (AD 418) and the Franks (507) and was frequently contested by France and England until the end of the Hundred Years' War, when it was incorporated into the French crown lands.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.