The following works have been used in producing this site. 

General

  • Jackson, K. (1953) Language and History in Early Britain, Edinburgh University Press
  • Koch, JT.(ed.) (2006) Celtic Culture: a historical encyclopedia, ABC-CLIO Ltd.
  • Matasović, R. (2009) Etymological Dictionary of Proto-Celtic, Koninklijke Brill NV, Leiden
  • Price, G. (ed.) (2000) Languages in Britain and Ireland, Blackwell, Oxford
  • Schrijver, P. (1995) Studies in British Celtic Historical Phonology, Rodopi, Amsterdam

Place Names

  • Ekwall, E. (1960) The Concise Oxford Dictionary of English Place-Names, 4th edition, OUP
  • Lee, J. (1998) The Place Names of Cumbria, Cumbria Heritage Services, Carlisle
  • Mills, AD. (1991) A Dictionary of British Place-Names, OUP
  • Nicolaisen, WHF. (1976) Scottish Place-Names, BT Batsford Ltd, London
  • Watson, W.J. (1926) The Celtic Place-Names of Scotland, Birlinn, Edinburgh
  • Weatherhill, C. (2009) A Concise Dictionary of Cornish Place-Names, Evertype, Co. Mhaigh Eo.

History

  • Phythian-Adams, C. (1996) Land of the Cumbrians, Scolar Press, Aldershot
  • Rollason, D. (2003) Northumbria 500-1100: Creation and destruction of a kingdom, CUP

Other Languages

  • Bock, A. et al (2012) Gerlyver an FSS, Maga, Truro
  • Fargher, DC. (1979) Fargher’s English-Manx Dictionary, Shearwater Press, IOM
  • Goodwin, E. (1997) First Lessons in Manx, revised edition, Yn Cheshaght Ghailckagh, IOM
  • Henry, V. (1900) Lexique Étymologique du Breton Moderne, Rennes
  • Hemon, R. & Everson, M. (trans.) (2007) Breton Grammar, 2nd edition, Evertype, Co. Mhaigh Eo
  • McLeod WT. (ed.) (1957) Collins Gem Latin Dictionary, William Collins Sons & Co. Ltd
  • Mac Mathúna, S. & Ó Corráin, A. (eds.) (1995) Collins Gem Irish Dictionary, HarperCollins Publishers
  • Meurig Evans, H. & Thomas, WO. (eds.) (1953) Y Geiriadur Newydd, Christopher Davies, Swansea
  • Mitchell, B. & Robinson, FC. (1986) A Guide to Old English, 4th edition, Basil Blackwell Ltd, Oxford
  • Morris Jones, J. (1913) A Welsh Grammar Historical and Comparative, Clarendon, Oxford
  • Williams, SJ. (1980) A Welsh Grammar, University of Wales Press
  • An Stòr-dàta Briathrachais Gàidhlig at http://www2.smo.uhi.ac.uk/gaidhlig/faclair/sbg/, accessed 2011-2014
  • Electronic Dictionary of the Irish Language at http://edil.qub.ac.uk, accessed 2013-14