English is a West Germanic language that originated from the Anglo-Frisian dialects brought to Britain by Germanic invaders from various parts of what is now northwest Germany and the Netherlands. Initially, Old English was a diverse group of dialects, reflecting the varied origins of the Anglo-Saxon kingdoms of England. One of these dialects, Late West Saxon,eventually came to dominate.
The English language underwent extensive change in the Middle Ages. Written Old English of AD 1000 is similar in vocabulary and grammar to other old Germanic languages such as Old High German and Old Norse, and completely unintelligible to modern speakers, while the modern language is already largely recognisable in written Middle English of AD 1400. The transformationwas caused by two further waves of invasion: the first by speakers of the Scandinavian branch of the Germanic language family, who conquered and colonized parts of Britain in the 8th and 9th centuries; the second by the Normans in the 11th century, who spoke Old Norman and ultimately developed an English variety of this called Anglo-Norman. A large proportion of the modern English vocabulary comesdirectly from Anglo-Norman.
Close contact with the Scandinavians resulted in a significant grammatical simplification and lexical enrichment of the Anglo-Frisian core of English. However, these changes had not reached South West England by the 9th century AD, where Old English was developed into a full-fledged literary language. The Norman invasion occurred in 1066, and when literary English roseanew in the 13th century, it was based on the speech of London, much closer to the centre of Scandinavian settlement. Technical and cultural vocabulary was largely derived from Old Norman, with particularly heavy influence in the church, the courts, and government. With the coming of the Renaissance, as with most other developing European languages such as German and Dutch, Latin and AncientGreek supplanted Norman and French as the main source of new words. Thus, English developed into very much a "borrowing" language with an enormously disparate vocabulary.
Early Modern English
Main article: Early Modern English
The English language underwent extensive sound changes during 1400's, while its spelling conventions remained rather constant. Modern English is often dated from the GreatVowel Shift, which took place mainly during the 15th century. English was further transformed by the spread of a standardised London-based dialect in government and administration and by the standardising effect of printing. Consequent to the push toward standardization, the language acquired self-conscious terms such as "accent" and "dialect". By the time of William Shakespeare (mid 16th -early 17th century), the language had become clearly recognisable as Modern English. In 1604, the first English dictionary was published, the Table Alphabeticall.
Increased literacy and travel have facilitated the adoption of many foreign words, especially borrowings from Latin and Greek since the Renaissance. (In the 17th century, Latin words were often used with the original inflections, butthese eventually disappeared). As there are many words from different languages and English spelling is variable, the risk of mispronunciation is high, but remnants of the older forms remain in a few regional dialects, most notably in the West Country. During the period, loan words were borrowed from Italian, German, and Yiddish. British acceptance of and resistance to Americanisms began during thisperiod.
 Modern English
Main article: Modern English
The Dictionary of the English Language was the first full featured English dictionary. Samuel Johnson published the authoritative work in 1755. To a high degree, the dictionary standardized both English spelling and word usage. Meanwhile, grammar texts by Lowth, Murray, Priestly, and others attempted to prescribe standard usage...