Roden old designation of the coastal areas of Svealand

Svealand

Svealand , Swealand or Sweden proper is the historical core region of Sweden. It is located in south central Sweden and is one of three lands of Sweden, bounded to the north by Norrland and to the south by Götaland. Deep forests, Tiveden, Tylöskog, Kolmården, separated Svealand from Götaland...

 (the yellow areas in the map), that in wartime would mann and equip the ships that sailed out in ledung

Leidang

The institution known as leiðangr , leidang , leding, , ledung , expeditio or sometimes lething , was a public levy of free farmers typical for medieval Scandinavians. It was a form of conscription to organise coastal fleets for seasonal excursions and in defence of the realm...

.

It was not only the eastern part of the province of Uppland

Uppland

Uppland is a historical province or landskap on the eastern coast of Sweden, just north of Stockholm, the capital. It borders Södermanland, Västmanland and Gästrikland. It is also bounded by lake Mälaren and the Baltic sea...

 that was called "Roden" (by Snorri Sturluson

Snorri Sturluson

Snorri Sturluson was an Icelandic historian, poet, and politician. He was twice elected lawspeaker at the Icelandic parliament, the Althing...

 called Sæland) but also other provinces by the Swedish "East sea" (Baltic sea

Baltic Sea

The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...

) , like the coastal areas of the province Östergötland.

The Finnish, Estonia

Estonia

Estonia , officially the Republic of Estonia , is a state in the Baltic region of Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia , and to the east by Lake Peipsi and the Russian Federation . Across the Baltic Sea lies...

n and Sami names for Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

, Ruotsi/Rootsi/Ruoŧŧa, are considered derived from the word "Roden".