Sweden
The official language of Sweden is Swedish, a North Germanic language, related and very similar to Danish and Norwegian, but differing in pronunciation and orthography. Norwegians have little difficulty understanding Swedish, and Danes can also understand it, with slightly more difficulty than Norwegians. The same goes for standard Swedish speakers, who find it far easier to understand Norwegian than Danish. The dialects spoken in Scania, the southernmost part of the country, are influenced by Danish because the region traditionally was a part of Denmark and is nowadays situated closely to it. Sweden Finns are Sweden's largest linguistic minority, comprising about 5% of Sweden's population, and Finnish is recognised as a minority language. Owing to a recent influx of native speakers of Arabic in latter years, the use of Arabic is likely more widespread in the country than that of Finnish. However, no official statistics are kept on language use.
Name of Sweden
The name of Sweden was Latinized as "Suecia" adopted in various Romance and Slavic languages, including Spanish "Suecia", Catalan "Suècia", Portuguese "Suécia", Russian Швеция "Shvetsiya", and in non-European languages influenced by such languages, In these languages, there is frequent confusion between the names of Sweden and of Switzerland (Spanish "Suiza", Catalan "Suïssa", Portuguese "Suíça", Russian Швейцария "Shveytsariya"). There is a historical tradition going back to at least the 15th century to the effect that Schwyz (the settlement which gave its name to Switzerland) was indeed named after the Swedes.
Ericus Olai in his "Chronica regni Gothorum " (c. 1470) notes the similarity in toponymy, "Swycia, quasi Suecia". This tradition was taken seriously in 19th-century scholarly reception of the Swiss Swedish origin legend, especially in Swedish romantic nationalism (e.g. Erik Gustaf Geijer's 1836 "History of the Swedes"), but is not now considered likely.