from The American Heritage® Dictionary of the English Language, 4th Edition
- An Anglo-Saxon kingdom of central England. It was settled by Angles c. A.D. 500 and enjoyed its greatest influence during the rule (757-796) of Offa. In 874 the kingdom was overrun by the Danes and split between Wessex and the Danelaw.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. one of the Anglo-Saxon kingdoms of England
Latinization of Old English Mierce (literally "border people"). (Wiktionary)