Phonological Change

Phonological change — change in the sound system of a language — is often less immediately visible than lexical or grammatical change because it operates below the level of conscious awareness. Speakers do not decide to change their pronunciation; sound changes spread through communities gradually, often over generations. Yet phonological change has profoundly shaped the English language, from the Great Vowel Shift that separated Middle from Modern English to the contemporary sound changes reshaping British accents today. This lesson examines the key phonological changes in the history of English and the sociolinguistic factors that drive them.

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The Great Vowel Shift in Detail

The Great Vowel Shift (GVS) was a series of changes in the pronunciation of long vowels that occurred between approximately 1400 and 1700, during which all long vowels raised their place of articulation, and the two highest vowels became diphthongs.

The GVS is the most significant phonological change in the history of English. It fundamentally altered the vowel system and is the primary reason why English spelling does not match pronunciation.

The Chain of Changes

The GVS can be visualised as a chain in which each vowel moved upward in the mouth. The two vowels already at the top (/iː/ and /uː/) had nowhere to go upward and so became diphthongs:

Before GVS	After GVS	Example	Spelling (fixed before/during shift)
/iː/	/aɪ/	time — ME /tiːmə/ → ModE /taɪm/	‹i› still suggests the old pronunciation
/uː/	/aʊ/	house — ME /huːs/ → ModE /haʊs/	‹ou› reflects earlier sound
/eː/	/iː/	meet — ME /meːt/ → ModE /miːt/	‹ee› now represents /iː/
/ɛː/	/iː/	meat — ME /mɛːt/ → ModE /miːt/	‹ea› merged with ‹ee›
/oː/	/uː/	moon — ME /moːn/ → ModE /muːn/	‹oo› now represents /uː/
/ɔː/	/oʊ/	boat — ME /bɔːt/ → ModE /boʊt/	‹oa› reflects earlier sound
/aː/	/eɪ/	name — ME /naːmə/ → ModE /neɪm/	‹a› + silent ‹e› marks the change

Theories of the GVS

Theory	Proponent	Explanation
Push chain	Otto Jespersen (1860–1943)	The high vowels diphthongised first, creating "space" for lower vowels to move up
Drag chain	William Labov (b. 1927)	The lower vowels moved up first, "pulling" the higher vowels out of their positions
Social motivation	Various scholars	Mass migration to London during and after the Black Death mixed dialects, triggering changes
Polysystemic view	Roger Lass (b. 1937)	The GVS was not a single unified change but a series of independent shifts that happened to coincide

Consequences of the GVS

1. Spelling-pronunciation mismatch: English spelling was largely fixed by printers before and during the GVS. The result is that modern spelling reflects 15th-century pronunciation.
2. Homophones: Words that were distinct in ME became homophones: meat/meet, sea/see (both had different ME vowels).
3. Silent letters: Letters like the ‹k› in knight and the ‹gh› in night were still pronounced in ME but fell silent during or after the GVS period.

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Consonant Changes

While vowel changes attract most attention, significant consonant changes have also occurred:

Change	Period	Examples
Loss of initial /h/ in clusters	ME/EModE	hring → ring; hlāf → loaf; hnecca → neck
Loss of /x/ (voiceless velar fricative)	ME/EModE	niht /nɪxt/ → night /naɪt/; leoht → light
Loss of initial /k/ before /n/	17th century	know, knee, knight, knife — ‹k› no longer pronounced
Loss of initial /ɡ/ before /n/	17th century	gnat, gnaw — ‹g› no longer pronounced
Loss of /w/ before /r/	17th–18th century	write, wrong, wrist — ‹w› no longer pronounced
H-dropping	Ongoing (dialectal)	'ouse, 'appy, 'ere — stigmatised in standard English since 18th century

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Received Pronunciation (RP)

Received Pronunciation (RP) is the accent traditionally associated with educated, southern British English, historically the prestige accent of England. It is sometimes called "BBC English" or "the Queen's English."

RP emerged as a prestige accent in the 18th and 19th centuries, strongly associated with the public school system and the upper classes. Key features of traditional RP include:

Feature	Example
Non-rhotic (no post-vocalic /r/)	car = /kɑː/ (no /r/ after vowel)
Long vowels in BATH words	bath, grass, dance with /ɑː/ (not /æ/)
Clear /l/ before vowels, dark /ɫ/ elsewhere	light vs. milk
No h-dropping	hat = /hæt/ (never /æt/)
/t/ fully released	butter = /bʌtə/ (not /bʌʔə/)

However, RP itself has changed over time. Linguists distinguish between:

• Conservative RP: The older, upper-class variety (associated with pre-1960s speakers)
• Mainstream RP: The contemporary standard
• Contemporary RP (or "Modern RP"): Shows influence from Estuary English and other changes