Welsh place names
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Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
derive in most cases from the
Welsh language Welsh ( or ) is a Celtic language of the Brittonic subgroup that is native to the Welsh people. Welsh is spoken natively in Wales, by some in England, and in Y Wladfa (the Welsh colony in Chubut Province, Argentina). Historically, it has ...
, but have also been influenced by linguistic contact with the
Roman Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *'' Epistle to the Romans'', shortened to ''Romans'', a lette ...
s,
Anglo-Saxons The Anglo-Saxons were a Cultural identity, cultural group who inhabited England in the Early Middle Ages. They traced their origins to settlers who came to Britain from mainland Europe in the 5th century. However, the ethnogenesis of the Anglo- ...
,
Vikings Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and ...
,
Anglo-Normans The Anglo-Normans ( nrf, Anglo-Normaunds, ang, Engel-Norðmandisca) were the medieval ruling class in England, composed mainly of a combination of ethnic Normans, French, Anglo-Saxons, Flemings and Bretons, following the Norman conquest. A sma ...
and modern English. Toponymy in Wales reveals significant features of the country's history and geography, as well as the development of the Welsh language. Its study is promoted by the Welsh Place-Name Society ().


History

During the 4th to 11th centuries, while Anglo-Saxons and other migrants from Europe settled adjoining areas of
Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King ...
, Wales developed as a distinctive entity, developing its language, culture, legal code, and political structures. By stages between the 11th and 16th centuries, Wales was then subdued, conquered and eventually incorporated into the
Kingdom of England The Kingdom of England (, ) was a sovereign state on the island of Great Britain from 12 July 927, when it emerged from various History of Anglo-Saxon England, Anglo-Saxon kingdoms, until 1 May 1707, when it united with Kingdom of Scotland, ...
while still retaining many distinct cultural features, most notably its language. Since then, there has been a mixing of cultures in Wales, with the English language dominant in industry and commerce, but with Welsh remaining as a living language, particularly in its stronghold, '' y Fro Gymraeg'' or "Welsh language country" in northwest, mid- and west Wales. Welsh culture and political autonomy has been reasserted increasingly since the mid 19th century.


Language characteristics

The Welsh language is a Western Brittonic language descended from the Common Brittonic spoken throughout
Britain Britain most often refers to: * The United Kingdom, a sovereign state in Europe comprising the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands * Great Britain, the largest island in the United King ...
in the centuries before the Anglo-Saxon and Viking invasions that led to the creation of England. Many place-names in Britain, particularly of natural features such as rivers and hills, derive directly from Common Brittonic. Obvious examples of place-names of Welsh origin include Penrith ("headland by the ford") and the numerous Rivers Avon, from the Welsh ''afon'' ("river"). Place-names from the Western Brittonic-speaking
Hen Ogledd Yr Hen Ogledd (), in English the Old North, is the historical region which is now Northern England and the southern Scottish Lowlands that was inhabited by the Brittonic people of sub-Roman Britain in the Early Middle Ages. Its population sp ...
occur in
Cumbria Cumbria ( ) is a ceremonial and non-metropolitan county in North West England, bordering Scotland. The county and Cumbria County Council, its local government, came into existence in 1974 after the passage of the Local Government Act 1972. C ...
and the Scottish Lowlands. These include the name of
Edinburgh Edinburgh ( ; gd, Dùn Èideann ) is the capital city of Scotland and one of its 32 council areas. Historically part of the county of Midlothian (interchangeably Edinburghshire before 1921), it is located in Lothian on the southern shore of t ...
, from
Cumbric Cumbric was a variety of the Common Brittonic language spoken during the Early Middle Ages in the ''Hen Ogledd'' or "Old North" in what is now the counties of Westmorland, Cumberland and northern Lancashire in Northern England and the souther ...
''Din Eidin'' "Eidin's Fort". The Cornish language is a Southwestern Brittonic language and many place-names in
Cornwall Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic ...
and to a lesser extent neighbouring
Devon Devon ( , historically known as Devonshire , ) is a ceremonial and non-metropolitan county in South West England. The most populous settlement in Devon is the city of Plymouth, followed by Devon's county town, the city of Exeter. Devo ...
, Somerset and
Dorset Dorset ( ; archaically: Dorsetshire , ) is a county in South West England on the English Channel coast. The ceremonial county comprises the unitary authority areas of Bournemouth, Christchurch and Poole and Dorset. Covering an area of , ...
therefore have similar origins to names in Wales, such as the
River Avon, Devon The River Avon, also known as the River Aune, is a river in the county of Devon in the southwest of England. It rises in the southern half of Dartmoor National Park in an area of bog to the west of Ryder's Hill. Close to where the river leav ...
. The settlement name ''Tre-'' is identical to that used in Welsh and is among the most common placename elements in both Wales and Cornwall equating to English ''-ton'', alongside ''Lan-'' equating to Welsh ''Llan-'' combined with the name of a Saint. In Devon the prevalent use of ''-combe'' reflects an early English borrowing of Cornish/Welsh ''cwm''. Welsh remains a living language, spoken by over 20% of the country's population. Like all languages, it has changed over time and continues to do so, for instance by accepting loan words from other languages such as
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
and English. The Welsh language itself has many characteristics unfamiliar to most English speakers that can make it difficult to understand its place-names. For example, it uses a number of initial consonant changes (called "mutations") in different grammatical circumstances. In relation to place-names, this means that, for example, a parish ('' llan'') dedicated to one of the saints Mary (''Mair'') becomes ''Llanfair'' – the initial ''m'' of ''Mair'' changes to ''f'' (pronounced /v/) for grammatical reasons. Other changes can apply to internal vowels. There are also differences between Welsh and English spelling standards, which have affected how place-names are spelled in the two languages. For instance, a single ''f'' in Welsh is always pronounced /v/ (or is silent), while ''ff'' is pronounced /f/; thus, the Welsh word for river, ''afon'', is pronounced with a v-sound and so often spelled "Avon" when it appears in English place-names and river names.Hywel Wyn Owen, ''The Place-names of Wales'', 1998,


Development of place-names in Wales

Early inhabitants of Wales gave names first to noteworthy natural features, such as rivers, hills, mountains, harbours and shores. Before the Roman occupation in the first century, there does not seem to have been a coming together in organised settlements, and therefore little reason to give names to such places. The Roman towns which were established were generally fortified and were given the generic name of ''castra'', which in Welsh became ''caer'', originally with the meaning of "fortified enclosure". Many of these continued as towns after the Romans left, including
Caernarfon Caernarfon (; ) is a royal town, community and port in Gwynedd, Wales, with a population of 9,852 (with Caeathro). It lies along the A487 road, on the eastern shore of the Menai Strait, opposite the Isle of Anglesey. The city of Bangor is ...
,
Carmarthen Carmarthen (, RP: ; cy, Caerfyrddin , "Merlin's fort" or "Sea-town fort") is the county town of Carmarthenshire and a community in Wales, lying on the River Towy. north of its estuary in Carmarthen Bay. The population was 14,185 in 2011, ...
(''Caerfyrddin''),
Caerleon Caerleon (; cy, Caerllion) is a town and community in Newport, Wales. Situated on the River Usk, it lies northeast of Newport city centre, and southeast of Cwmbran. Caerleon is of archaeological importance, being the site of a notable Roman ...
, and
Caerwent Caerwent ( cy, Caer-went) is a village and community in Monmouthshire, Wales. It is located about five miles west of Chepstow and 11 miles east of Newport. It was founded by the Romans as the market town of ''Venta Silurum'', an important sett ...
. Elsewhere, many villages and later towns took their names from natural features. For example,
Abergele Abergele (; ; ) is a market town and community, situated on the north coast of Wales between the holiday resorts of Colwyn Bay and Rhyl, in Conwy County Borough and in the historic county of Denbighshire. Its northern suburb of Pensarn lies ...
refers to the "mouth of the
iver Iver is a large civil parish in Buckinghamshire, England. In addition to the central clustered village, the parish includes the residential neighbourhoods of Iver Heath and Richings Park. Geography, transport and economy Part of the 43-square- ...
Gele",
Harlech Harlech () is a seaside resort and community in Gwynedd, north Wales and formerly in the historic county of Merionethshire. It lies on Tremadog Bay in the Snowdonia National Park. Before 1966, it belonged to the Meirionydd District of the 19 ...
means "fair rock",
Rhuddlan Rhuddlan () is a town, community, and electoral ward in the county of Denbighshire, Wales, in the historic county of Flintshire. Its associated urban zone is mainly on the right bank of the Clwyd; it is directly south of seafront town Rhyl. ...
"red bank", and
Porthcawl Porthcawl (, ) is a town and community on the south coast of Wales in the county borough of Bridgend, west of the capital city, Cardiff and southeast of Swansea. Historically part of Glamorgan and situated on a low limestone headland on the S ...
"harbour with sea-kale". Aberystwyth means "mouth of the Ystwyth", a river a mile or so away from the town centre, and was apparently so named as a result of confusion by the English over the different castles in the area. Many others took their name from religious settlements and '' clasau'' (monasteries) established from the fifth century onwards. These generally use the prefix '' llan'', roughly equivalent to "parish". Most of them are dedicated to their founders,Baring-Gould, Sabine
''The Lives of the Saints'', Vol. 16, "The Celtic Church and its Saints", p. 67
Longmans, Green, & Co. (New York), 1898.
who hailed from local dynasties and were venerated as
patron saints A patron saint, patroness saint, patron hallow or heavenly protector is a saint who in Catholicism, Anglicanism, or Eastern Orthodoxy is regarded as the heavenly advocate of a nation, place, craft, activity, class, clan, family, or person. I ...
. Examples include Llandudno ("
Saint Tudno Saint Tudno () is the patron saint of Llandudno (whose name is derived from his), and founder of the original parish church, located on the Great Orme peninsula. Origins Saint Tudno is said to have been one of the seven sons of King Seitheny ...
's"),
Llanelli Llanelli (" St Elli's Parish"; ) is a market town and the largest community in Carmarthenshire and the preserved county of Dyfed, Wales. It is located on the Loughor estuary north-west of Swansea and south-east of the county town, Carmarth ...
(" Saint Elli's"), and Llantwit ("
Illtud Saint Illtud (also spelled Illtyd, Eltut, and, in Latin, Hildutus), also known as Illtud Farchog or Illtud the Knight, is venerated as the abbot teacher of the divinity school, Bangor Illtyd, located in Llanilltud Fawr (Llantwit Major) in Gla ...
's"). Following the
Norman invasion of Wales The Norman invasion of Wales began shortly after the Norman conquest of England under William the Conqueror, who believed England to be his birthright. Initially (1067–1081), the invasion of Wales was not undertaken with the fervour and purpose ...
, some were rededicated to more generic saints:
Llanilar Llanilar is a village and community in Ceredigion, Wales, about southeast of Aberystwyth. It is the eponym of the hundred of Ilar. The population at the 2011 census was 1,085. The community includes Rhos-y-garth. Name In Welsh placenames, ma ...
(" Saint Hilary's"), Llanfoist ("
Saint Faith Saint Faith or Saint Faith of Conques (Latin: Sancta Fides; French: Sainte-Foy; Spanish: Santa Fe) is a saint who is said to have been a girl or young woman of Agen in Aquitaine. Her legend recounts how she was arrested during persecution of Chri ...
's"). A few—usually by mistake—include other elements or none at all: Llan, Powys,
Llanharry Llanharry ( cy, Llanhari) is a village, community (civil parish) and electoral ward in the county borough of Rhondda Cynon Taf, Wales. Historically part of Glamorgan, Llanharry has been inextricably linked with iron mining as far back as the R ...
,
Llangefni Llangefni (meaning "church on the River Cefni", ) is the county town of Anglesey in Wales and contains the principal offices of the Isle of Anglesey County Council. United Kingdom Census 2011 recorded Llangefni's population as 5,116 people, ma ...
("Parish by the
Afon Cefni Afon Cefni is one of the major rivers on the island of Anglesey, Wales. It is long. Its source is near to the village of Capel Coch, before flowing through Bodffordd and into Llyn Cefni in the centre of the island. It continues to run south th ...
"). Other religious place-names include ''merthyr'' ("
martyr A martyr (, ''mártys'', "witness", or , ''marturia'', stem , ''martyr-'') is someone who suffers persecution and death for advocating, renouncing, or refusing to renounce or advocate, a religious belief or other cause as demanded by an externa ...
") and ''eglwys'' ("church"). Over the centuries, Welsh place-names have been variously affected by social and economic changes in the country. The
Industrial Revolution The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going f ...
saw the development of many new towns and villages, particularly in south Wales. Some of these used already existing place-names, while others acquired new names. For example, the towns of
Port Talbot Port Talbot (, ) is a town and community in the county borough of Neath Port Talbot, Wales, situated on the east side of Swansea Bay, approximately from Swansea. The Port Talbot Steelworks covers a large area of land which dominates the south ...
and
Tredegar Tredegar (pronounced , ) is a town and community situated on the banks of the Sirhowy River in the county borough of Blaenau Gwent, in the southeast of Wales. Within the historic boundaries of Monmouthshire, it became an early centre of the In ...
took the names of their main landowners and developers. In north Wales,
Porthmadog Porthmadog (; ), originally Portmadoc until 1974 and locally as "Port", is a Welsh coastal town and community in the Eifionydd area of Gwynedd and the historic county of Caernarfonshire. It lies east of Criccieth, south-west of Blaenau Ff ...
was originally named "Portmadoc" by its developer
William Madocks William Alexander Madocks (17 June 1773 – 15 September 1828) was a British politician and landowner who served as Member of Parliament (MP) for the borough of Boston in Lincolnshire from 1802 to 1820, and then for Chippenham in Wiltshire from ...
, to commemorate both his own name and that of the possibly mythical sailor
Madoc Madoc ab Owain Gwynedd (also spelled Madog) was, according to folklore, a Welsh prince who sailed to America in 1170, over three hundred years before Christopher Columbus's voyage in 1492. According to the story, he was a son of Owain Gwyned ...
. An early example of a
publicity stunt In marketing, a publicity stunt is a planned event designed to attract the public's attention to the event's organizers or their cause. Publicity stunts can be professionally organized, or set up by amateurs. Such events are frequently utilize ...
saw the village of
Llanfairpwllgwyngyll Llanfairpwllgwyngyll, or Llanfair Pwllgwyngyll (), is a large village and local government community on the island of Anglesey, Wales, on the Menai Strait next to the Britannia Bridge and across the strait from Bangor. Both shortened (Llanf ...
("St Mary's church beside the hollow with white hazels") renaming itself in the 1860s with an even longer title, in an attempt to keep its railway station open. Common elements of Welsh place-names thus include both words for topographical features and words reflecting human influence. Some of the most frequently encountered place-name elements in Wales are shown in the table below. The Welsh version shown is the original, unmutated reference form.


Relationship between Welsh and English place-names

In the majority of cases in Wales, the Welsh and English names for a place are identical, almost always because the Welsh name is used. So, for example, Aberystwyth, Blaenau Ffestiniog, Bangor,
Machynlleth Machynlleth () is a market town, community and electoral ward in Powys, Wales and within the historic boundaries of Montgomeryshire. It is in the Dyfi Valley at the intersection of the A487 and the A489 roads. At the 2001 Census it had a pop ...
and Llandudno all have the same spelling in Welsh and English, although it is also often the case that many English people do not pronounce the name in the same way as the Welsh. There are also many instances where the Welsh and English names are very similar, both in spelling and pronunciation. Examples are Caerphilly (''Caerffili''), Raglan (''Rhaglan''), Treorchy (''Treorci''), Barry (''Y Barri'') and Merthyr Tydfil (''Merthyr Tudful''). In most of these cases, English usage adopted and anglicised the Welsh name, although there are some cases, especially close to the English border, where the English name was adopted by the Welsh. Examples are
Flint Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Flint was widely used historically to make stone tools and sta ...
(''Y Fflint'') and
Wrexham Wrexham ( ; cy, Wrecsam; ) is a city and the administrative centre of Wrexham County Borough in Wales. It is located between the Welsh mountains and the lower Dee Valley, near the border with Cheshire in England. Historically in the count ...
(''Wrecsam'') in north east Wales, and Caldicot (''Cil-y-coed'') in south east Wales. A related case is the Norman French foundation of
Beaumaris Beaumaris ( ; cy, Biwmares ) is a town and community on the Isle of Anglesey in Wales, of which it is the former county town of Anglesey. It is located at the eastern entrance to the Menai Strait, the tidal waterway separating Anglesey from th ...
(''Biwmares''). In a few cases, such as
Prestatyn Prestatyn is a seaside town and community in Denbighshire, Wales. Historically a part of Flintshire, it is located on the Irish Sea coast, to the east of Rhyl. Prestatyn has a population of 19,085, History Prehistory There is evidence that ...
(originally "priest's town", which elsewhere became "Preston") and
Mostyn Mostyn is a village and community in Flintshire, Wales, and electoral ward lying on the estuary of the River Dee, located near the town of Holywell. It has a privately owned port that has in the past had a colliery and ironworks and was invo ...
, the original name was wholly English but has gradually taken on a Welsh appearance. In some cases this in fact results from Welsh having preserved an earlier stage of English pronunciation; as is the case in Prestatyn (Old English ''Preostatun'' /'pre:əstɑtu:n/) or the mountain Cnicht ("knight"), Old/Middle English pronunciation /knɪɕt/. This also occurs in reverse; eg English ''Severn'' preserves the Proto-Celtic which became in modern Welsh (''Hafren''). In one or two others, such as
Caergwrle Caergwrle () is a village in the county of Flintshire, in north east Wales. Approximately from Wrexham and situated on the A541 road, it is contiguous with the villages of Abermorddu and Hope, though in parts Caergwrle and Hope are separated by ...
, the name combines Welsh (''caer'') and English elements – the village was originally the English settlement of Corley. In some cases, the spelling formerly used in English has, over the past few decades, ceased to be accepted – examples are
Caernarfon Caernarfon (; ) is a royal town, community and port in Gwynedd, Wales, with a population of 9,852 (with Caeathro). It lies along the A487 road, on the eastern shore of the Menai Strait, opposite the Isle of Anglesey. The city of Bangor is ...
(formerly, in English, Ca(e)rnarvon),
Conwy Conwy (, ), previously known in English as Conway, is a walled market town, community and the administrative centre of Conwy County Borough in North Wales. The walled town and castle stand on the west bank of the River Conwy, facing Deganwy on ...
(formerly Conway), and
Llanelli Llanelli (" St Elli's Parish"; ) is a market town and the largest community in Carmarthenshire and the preserved county of Dyfed, Wales. It is located on the Loughor estuary north-west of Swansea and south-east of the county town, Carmarth ...
(formerly Llanelly). Most of these examples are in predominantly Welsh-speaking areas of Wales. There are also places where there are ongoing disagreements over whether the Welsh spelling should be used exclusively or not, such as
Criccieth Criccieth ( cy, Criccieth ) is a town and community on the Llŷn Peninsula in the Eifionydd area of Gwynedd in Wales. The town lies west of Porthmadog, east of Pwllheli and south of Caernarfon. It had a population of 1,826 in 2001, reducing ...
(''Cricieth''),
Rhayader Rhayader (; cy, Rhaeadr Gwy; ) is a market town and community in Powys, Wales, within the historic county of Radnorshire. The town is from the source of the River Wye on Plynlimon, the highest point of the Cambrian Mountains, and is locate ...
(''Rhaeadr''), and
Ruthin Ruthin ( ; cy, Rhuthun) is a market town and community in Denbighshire, Wales, in the south of the Vale of Clwyd. It is Denbighshire's county town. The town, castle and St Peter's Square lie on a hill, skirted by villages such as Pwllglas and ...
(''Rhuthun''). In other cases, the Welsh and English names clearly share the same original form, but spellings and pronunciation have diverged over the years. One obvious example is
Cardiff Cardiff (; cy, Caerdydd ) is the capital and largest city of Wales. It forms a principal area, officially known as the City and County of Cardiff ( cy, Dinas a Sir Caerdydd, links=no), and the city is the eleventh-largest in the United Kingd ...
(''Caerdydd''). The medieval Welsh form was ''Caerdyf'' (with a final ) from which are derived the modern English ''Cardiff'' (with a final ) and the modern Welsh ''Caerdydd'' (with a final ). Some examples of the anglicisation of place-names are the towns of Denbigh and
Tenby Tenby ( cy, Dinbych-y-pysgod, lit=fortlet of the fish) is both a walled seaside town in Pembrokeshire, Wales, on the western side of Carmarthen Bay, and a local government community. Notable features include of sandy beaches and the Pembroke ...
, both derived from the Welsh name ''Dinbych'' ("little fort"); Pembroke (from ''Penfro'', literally "land's end");
Lampeter Lampeter (; cy, Llanbedr Pont Steffan (formal); ''Llambed'' ( colloquial)) is a town, community and electoral ward in Ceredigion, Wales, at the confluence of the Afon Dulas with the River Teifi. It is the third largest urban area in Ceredigion ...
(from ''Llanbedr'', in full ''Llanbedr Pont Steffan'');
Skenfrith Skenfrith ( cy, Ynysgynwraidd) is a small village in Monmouthshire, south-east Wales. It is located on the River Monnow, close to the border between Wales and England, about north-west of Monmouth. The road through the village (B4521) was once ...
(from ''Ynysgynwraidd''); and
Barmouth Barmouth ( cy, Abermaw (formal); ''Y Bermo'' (colloquial)) is a seaside town and community in the county of Gwynedd, northwestern Wales, lying on the estuary of the Afon Mawddach and Cardigan Bay. Located in the historic county of Merioneths ...
(in modern Welsh ''Y Bermo'', but originally ''Aber-mawdd'', meaning "mouth of the
iver Iver is a large civil parish in Buckinghamshire, England. In addition to the central clustered village, the parish includes the residential neighbourhoods of Iver Heath and Richings Park. Geography, transport and economy Part of the 43-square- ...
Mawdd(ach))". Finally, there are a number of places, listed in the table below, where the English and Welsh names have, or may appear to have, different origins. These have developed for a variety of reasons.
Brecon Brecon (; cy, Aberhonddu; ), archaically known as Brecknock, is a market town in Powys, mid Wales. In 1841, it had a population of 5,701. The population in 2001 was 7,901, increasing to 8,250 at the 2011 census. Historically it was the coun ...
and Cardigan both took their English names from their surrounding historic kingdoms, but took their Welsh names from local rivers; almost the reverse process occurred at
Usk Usk ( cy, Brynbuga) is a town and community in Monmouthshire, Wales, northeast of Newport. It is located on the River Usk, which is spanned by an arched stone bridge at the western entrance to the town. Usk Castle, above the town, overlooks th ...
. Names given by Norse settlers, such as Swansea,
Fishguard Fishguard ( cy, Abergwaun, meaning "Mouth of the River Gwaun") is a coastal town in Pembrokeshire, Wales, with a population of 3,419 in 2011; the community of Fishguard and Goodwick had a population of 5,407. Modern Fishguard consists of two p ...
and
Anglesey Anglesey (; cy, (Ynys) Môn ) is an island off the north-west coast of Wales. It forms a principal area known as the Isle of Anglesey, that includes Holy Island across the narrow Cymyran Strait and some islets and skerries. Anglesey island ...
, tended to be adopted in English usage but not by the Welsh. Again, there are exceptions such as the island of
Skomer Skomer () or Skomer Island is an island off the coast of Pembrokeshire, in the community of Marloes and St Brides in west Wales. It is well known for its wildlife: around half the world's population of Manx shearwaters nest on the island, the A ...
(from Norse words meaning "cloven island"). English names for the
Great Orme The Great Orme ( cy, Y Gogarth) is a limestone headland on the north coast of Wales, north-west of the town of Llandudno. Referred to as ''Cyngreawdr Fynydd'' by the 12th-century poet Gwalchmai ap Meilyr, its English name derives from the Old N ...
and
Worm's Head Worm's Head ( cy, Ynys Weryn) is a headland, at Rhossili, part of the City and County of Swansea, Wales. It is the furthest westerly point of the Gower Peninsula. The name Worm's Head is derived from an Old English word 'wyrm' for 'sea serpent ...
both derive from the Norse word ''orm'', referring to their shape resembling a serpent's head.


Places in Wales whose Welsh and English names appear substantially different


Official policy on place-names in Wales

The naming of places in Wales can be a matter of dispute and uncertainty. In some cases there is an issue of whether both the Welsh and English names should be used, or only one, and which should be given priority. In other cases it is because usage and style have changed over the years, and there is debate over which form or spelling of a placename should be used. Both the
Welsh Government , image = , caption = , date_established = , country = Wales , address = , leader_title = First Minister () , appointed = First Minister approved by the Senedd, ceremonially appointed ...
and the
Ordnance Survey Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose (see ordnance and surveying), which was to map Scotland in the wake of the Jacobite rising of 1745. There was a ...
have policies on standardising place-names, drawing on advice from the
Welsh Language Commissioner The Welsh Language Commissioner () is a Welsh Government officer, overseeing an independent advisory body of the same name. The position was created following the passing of the ''Welsh Language (Wales) Measure 2011'', effective on 1 April 2012 ...
and the Place-name Research Centre at the
University of Wales, Bangor , former_names = University College of North Wales (1884–1996) University of Wales, Bangor (1996–2007) , image = File:Arms_of_Bangor_University.svg , image_size = 250px , caption = Arms ...
. The policy of the Welsh Government on place-names as shown on road signs within its jurisdiction is set out in its ''Welsh Language Scheme''. This states: ''"The signs for which we are responsible (mostly motorway and trunk road signs) will be bilingual. Signs which are in English only at the moment will be made bilingual when they are replaced.... When both languages are included on one sign with one language above the other, the order in which the languages appear will follow the practice adopted by the local authority where the sign is located."'' The latter proviso applies because local authorities have discretion over the forms used on local highway signs. In the predominantly Welsh-speaking areas of Wales, the Welsh form of the name is usually given first; in other areas, the English name is usually given first. The guidance also states: ''"Signs containing place names in England will contain the Welsh and English versions of the name...."''. This proviso has led to new motorway signs in south Wales showing the names ''Llundain'' and ''Bryste'' as well as their English-language names, London and Bristol.


Welsh names for other places in Great Britain and Ireland

The modern Welsh language contains names for many towns and other geographical features across Britain and Ireland. In some cases, these derive from the Brythonic names which were used during or before the Roman occupation: for example, ''Llundain'' (London), ''Cernyw'' (
Cornwall Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic ...
), ''Dyfnaint'' (
Devon Devon ( , historically known as Devonshire , ) is a ceremonial and non-metropolitan county in South West England. The most populous settlement in Devon is the city of Plymouth, followed by Devon's county town, the city of Exeter. Devo ...
), and ''Ebrauc/Efrog'' (
York York is a cathedral city with Roman origins, sited at the confluence of the rivers Ouse and Foss in North Yorkshire, England. It is the historic county town of Yorkshire. The city has many historic buildings and other structures, such as a ...
). The origin of the modern Welsh name for England itself, ''
Lloegr England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe by th ...
'' , is disputed, but one widely believed theory – which, however, has no etymological foundation – is that it derives from purportedly poetic words meaning "lost land", and was originally applied to areas of
Mercia la, Merciorum regnum , conventional_long_name=Kingdom of Mercia , common_name=Mercia , status=Kingdom , status_text=Independent kingdom (527–879) Client state of Wessex () , life_span=527–918 , era= Heptarchy , event_start= , date_start= , ...
after the Saxon conquest before being applied to the whole of England. Many English county towns, founded as Roman ''castra'' and now having the English suffix "-c(h)ester", also have Welsh names, in most cases using the prefix ''
Caer Caer (; owl, cair or ') is a placename element in Welsh meaning "stronghold", "fortress", or "citadel", roughly equivalent to an Old English suffix (''-ceaster'') now variously written as , , and .Allen, Grant.