Norske Gaardnavne (English: Norwegian Farm Names) is a 19 volume set of books based on a manuscript prepared from 1897 to 1924 by Professor Oluf Rygh, a noted professor of archeology, philology and history at the University of Oslo. The book contains a standardized notation, information on pronunciation, historical forms and the etymology for recorded gaardnavne (farm, estate & manor names) in Norway. It was developed by detailed compilation of the various written and oral records of land ownership. It is the standard which establishes place names in Norway. Documenting over 45,000 farm names and related information in 1886, it became the inspiration for similar studies in Sweden and Denmark.
Read more about Norske Gaardnavne: Work of The Commission, Publication, Listing of The Volumes in Norske Gaardnavne