ABSTRACT
The Middle English period (1150-1500) was marked by momentous changes in the English language, changes more extensive and fundamental than those that have taken place at any time before or since. Some of them were the result of the Norman Conquest and the conditions which followed in the wake of that event. Others were a continuation of tendencies that had begun to manifest themselves in Old English. These would have gone on even without the Conquest, but they took place more rapidly because the Norman invasion removed from English those conservative influences that are always felt when a language is extensively used in books and is spoken by an influential educated class. The changes of this period affected English in both its grammar and its vocabulary. They were so extensive in each department that it is difficult to say which group is the more significant. Those in the grammar reduced English from a highly inflected language to an extremely analytic one.1 Those in the vocabulary involved the loss of a large part of the Old English word-stock and the addition of thousands of words from French and Latin. At the beginning of the period English is a language that must be learned like a foreign tongue; at the end it is Modern English.
