The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A sixth-century A.D. Anglian kingdom in present-day northeast England between the Humber and Tees rivers. It was later part of the kingdom of Northumbria.