A strip of land between the German territories of Pomerania and East Prussia, awarded to Poland by the Treaty of Versailles (1919) to afford access to the Baltic Sea. After years of friction over control of the area, Germany invaded Poland (1939) and quickly captured the Polish Corridor, triggering World War II and ending the Corridor's existence as a distinct geographical entity.
(click for a larger image)Polish Corridor
Polish Corridor in gray; Germany in green; free city of Danzig in green with hatching
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.