- the English language of the period c1150–c1475. Abbreviation: ME
- the English language from about 1100 to about 1450: main dialects are Kentish, Southwestern (West Saxon), East Midland (which replaced West Saxon as the chief literary form and developed into Modern English), West Midland, and Northern (from which the Scots of Lowland Scotland and other modern dialects developed)Abbreviation: ME Compare Old English, Modern English
The English language from about 1150 to about 1500. During this time, following the Norman Conquest of England, the native language of England — Old English — borrowed great numbers of words from the Norman French of the conquerors. Middle English eventually developed into modern English.