411 REFERENCE · Wiktionary
Røros
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Norwegian Bokmål
no Røros
thumb|Wooden buildings in Røros.
Alternative forms
nb Røraas historical spelling
Etymology
Originally a farm name. c 1530 as nb Røraas; the name later passed to the mining town and municipality. From the river name nb Røa, whose mouth lies in nb Glåma by the old Røros farm, and nb os river mouth, with the first element in a historical genitive or linking form; literally “Røa's river mouth”.
The river name nb Røa continues Old Norse non *Røyðr, probably ultimately connected with nb non rauðr red, though the precise motivation of the river name is uncertain.
Compare the second element with nn os, da os, sv os, is ós and fo ósur river mouth, estuary.
Pronunciation
nb /ˈrøː.rus/ /ˈrøː.ruːs/
nb øːrus øːruːs 2
nb Rø ros
Proper noun
nb proper noun
nb municipality county/Trøndelag c/Norway.
nb town mun/Røros county/Trøndelag c/Norway, the administrative centre of the municipality and a historic nb bergstad mining town.
Usage notes
nb Røros is especially known for its historical copper mining and its status as a World Heritage Site since 1980.
Derived terms
nb Rørosbanen the Røros Line
nb Rørosmartnan the Røros Market
nb rørosing person from Røros
References
John Stokkan and Morten O. Haugen, “Røros”, in Store norske leksikon, last updated 7 April 2026.
“Røros”, in Norsk stadnamnleksikon.
“Røa”, in Norsk stadnamnleksikon.
Oluf Rygh, Norske Gaardnavne: Søndre Trondhjems amt, W. C. Fabritius & sønners bogtrykkeri.
Norwegian Nynorsk
nn:
nn:Bergstaden +
Alternative forms
nn Røyros non-standard, rare
Etymology
Originally a farm name, until it was repurposed for the town around 1650. First part from nn non *Reyðr, from non rauðr red, cf. non reyðr. Last part from non óss river mouth.
Pronunciation
nn /²røːru(ː)s/
Proper noun
nn proper noun m definite Rørosen
nn mining town/and/municipality dist/Gauldal southern co/Trøndelag c/Norway
Derived terms
nn rørosing someone from Røros
Related terms
nn Røa river name
nn os river mouth
nn Abandoned mines in Norway