A Brief Overview of the Great Vowel Shift

‍Many languages underwent a period where they experience a significant amount of change. German has the High German consonant shift, while Latin eventually became the ancestor of all Romance languages, including French and Spanish. English is no exception to this rule, as it experienced major changes in pronunciation during a period called the Great Vowel Shift. 

The Great Vowel Shift is a significant linguistic event that occurred in the history of the English language. ‍ This transformative shift in pronunciation took place from the 15th to the 18th century, marking a significant distinction between Middle English and Early Modern English. Let’s explore the causes, effects, and theories surrounding this fascinating linguistic phenomenon in this Ghoti English article.

Origins and Context of the Great Vowel Shift

To understand this phenomenon, we must first explore the historical and social context in which it took place. The 14th century was a turbulent period in England, characterized by political upheavals and the devastating impact of the Bubonic Plague, often known as the Black Death. These events resulted in significant changes in English society and language.

Note that the Great Vowel Shift remains a topic of ongoing research in historical linguistics. Scholars and researchers continue to investigate the factors that influenced its occurrence. The theories and explanations presented in this article may provide a short but detailed summary of the phenomenon.

Nevertheless, further discoveries and interpretations may shed further light on this intriguing period in the history of the English language.

Turmoil and Migration

From 1337 to 1445, England and France fought the Hundred Years’ War, and the English aristocracy and royal court were transitioning from French to English as their primary language. For years, French became the language of the elite due to the influence of the Normans, who invaded England in 1066. 

However, it wasn’t until the 15th century that England completed this shift. Additionally, the Black Death, plaguing England and the rest of Europe from 1346 to 1353, caused death and mass migration, resulting in a diverse array of accents and dialects converging in areas like London and the Southeast.

The Role of Migration

The migration that followed the Bubonic Plague played a crucial role in the Great Vowel Shift. As migrants from different regions settled in London and other areas in England, a blending of accents and dialects likely occurred. This linguistic amalgamation may have influenced the pronunciation patterns of the pre-migration Londoners, who sought to differentiate themselves from the newcomers. The resulting changes in vowel pronunciations then spread throughout the country.

Social Mobility and Hypercorrection

Mass migration also led to increased social mobility and the blurring of class distinctions. This social upheaval may have contributed to the acceleration of the Great Vowel Shift in two ways. Firstly, it potentially diminished the differences between accents associated with different social classes. Secondly, the upper classes may have exaggerated their pronunciation to stand out from the lower classes, a phenomenon known as “hypercorrection.”

French Influence and Language Interplay

The close connection between the English and French languages during this period cannot be ignored. French was still the language of the monarchy and the court until the late 14th century, even as the aristocracy gradually transitioned to English. The proximity of the two languages and the incorporation of French loanwords likely had an impact on English pronunciation.

The influence of French on this linguistic event remains a topic of debate among linguists. Some argue that English pronunciation became closer to French due to the association of the upper classes with the language. Conversely, others believe that the war with France and anti-French sentiments led to a deliberate departure from French pronunciation.

Big Ben and the Houses of Parliament in London
Big Ben and Houses of Parliament (Image by vwalakte on Freepik)

Understanding the Great Vowel Shift

The Great Vowel Shift primarily affected the articulation of long vowels in English. These long vowels, characterized by their stressed and relatively longer duration, underwent systematic changes in their phonetic qualities during the shift.

Vowel Articulation and Phonetic Changes

The Great Vowel Shift can be understood through changes in the vertical position of the tongue during vowel articulation. The articulation of vowels shifted from low to middle and from middle to high, resulting in shifts in their phonetic qualities. It is important to note that the horizontal position of the tongue within the mouth, whether back, center, or front, generally remained unchanged.

For example, the word “sheep,” spelled in Middle English as schep or schepe, was pronounced with the tongue in a middle-front position and was pronounced like the Modern English word shape. It evolved during this event, and the pronunciation changed to the middle-high position, changing the pronunciation to a sound similar to the modern word “meet” (/i:/ in the International Phonetic Alphabet). Similar shifts occurred with other long vowels, resulting in a chain of changes throughout the vowel system.

Stages and Chronology of the Great Vowel Shift

Scholars and researchers identified multiple stages and differing rates of change during the Great Vowel Shift. Evidence from spellings, rhymes, and contemporary commentaries suggests that the shift operated in various stages, affecting vowels at different rates and in different parts of the country. This gradual process took over 200 years to complete, with the 14th to 16th centuries representing key periods of transformation.

The evolution of vowel pronunciation can be observed through the works of renowned poets and writers. According to author Nicholas Brealey, the famous Middle English poet Chaucer rhymed words like “food,” “good,” and “blood” (pronounced similarly to “goad”). However, by the time of Shakespeare, these words still rhymed, but with a pronunciation similar to “food.” Over time, even these pronunciations have shifted once again, showcasing the dynamic nature of language.

Impact on English Spelling and Pronunciation

The Great Vowel Shift had a profound impact on English spelling and pronunciation. The changes in vowel articulation during the shift led to inconsistencies between the spelling and pronunciation of words. These inconsistencies were further perpetuated by the introduction of the printing press in the late 15th century, which standardized spellings without considering the ongoing vowel shifts.

The mismatch between spelling and pronunciation can be exemplified by words like “goose,” “moose,” and “food.” The spelling indicated a long /o/ sound (/o:/) that shifted to /u/ during the Great Vowel Shift. However, the spelling remained unchanged, resulting in a discrepancy between the written form and the actual pronunciation.

Standardization and Resistance to Change

The Great Vowel Shift coincided with a period of increased book production and rising literacy rates. The standardization of spelling and the resistance to spelling change further solidified the discrepancies caused by the vowel shifts. The increased availability of books using pre-shift spellings meant that the new pronunciations were not accurately reflected in written texts.

This resistance to spelling change was partly due to the powerful force of tradition and the desire to maintain consistency in written communication. The result was a spelling system that did not fully align with the evolving pronunciation of words.

The Great Vowel Shift and Regional Variation

It is worth noting that the Great Vowel Shift did not affect all English dialects equally. Older Scots dialects, for instance, were only partially affected by the shift. While English accents replaced the long “uu” vowel in words like “house” with a diphthong, modern Scots dialects preserved the Middle English “uu” in words like “how” and “now.” This regional variation in its impact highlights the complex nature of linguistic change and the diverse linguistic landscapes that emerged during this period.


The Great Vowel Shift stands as a significant turning point in the history of the English language. It brought about transformative changes in vowel pronunciation, leading to inconsistencies between spelling and pronunciation that persist to this day. The social, political, and linguistic contexts of the time it happened played a crucial role in shaping this linguistic phenomenon. 

While the exact causes of the Great Vowel Shift remain uncertain, its impact on English pronunciation and spelling is undeniable. By understanding this linguistic shift, we gain valuable insights into the dynamic nature of language and its continuous evolution over time.

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