Humber-Lune Line
The Humber-Lune Line is a term used for the traditional dialect boundary in England between dialects derived from Northumbrian Old English to the north and Mercian Old English to the south.[1] It is considered the most significant dialect boundary within the Anglic dialect continuum[2] and separates the Scots language alongside the Northumbrian, Cumbrian, North Riding and East Riding dialects from all other Anglic varieties.

Within the last century the line has moved northwards to the Tees. Traditional Northumbrian dialects (in the broadest sense of the word) are now essentially extinct in Yorkshire, spoken only by some older speakers in the Yorkshire Dales. However, Northumbrian-based dialects are still spoken by younger speakers in Northumberland, Durham, and Cumberland, especially in areas around the Scottish Border.[3][4]
In-depth description
Traditional English dialects spoken north of the line, alongside the closely related Scots language, appear highly divergent and underwent markedly different paths of development from all other Anglic dialects. Primarily, differences in the development of early ME /uː/, early ME /oː/, and OE /ɑː/, the development of early ME short /o/ and short /e/ when subject to Open Syllable Lengthening, and the lengthening of OE short /u/ and /i/ before clusters of homorganic nasal plus stop, and the development of OE short /a/ before [ng] took radically different paths of development on either side of the line. Traditional Northern or Scots dialects, therefore, have coo [kuː] for cow, grund [grʊnd] for ground, wrang [ɹaŋ] for wrong, and stane [sten] (Scots) or styen/steean [stɪən] (Northern) for stone.[5]
References
- Culpeper, Jonathan (2008). History of English. Taylor & Francis. p. 61.
- Pietsch, Lukas (2011). Variable Grammars: Verbal Agreement in Northern Dialects of English. De Gruyter. p. 278.
- "Yorkshire dialect - an explanation". www.yorkshiredialectsociety.org.uk. The Yorkshire Dialect Society. Retrieved 3 July 2021.
- Wells, Katie (2002). Northern English: A Social and Cultural History. Cambridge University Press. p. 168. ISBN 9780511487071.
|access-date=requires|url=(help) - Hickey, Raymond (2015). Researching Northern English. Amsterdam: John Benjamins Publishing Company.