Where does “Södermanland” come from?

Södermanland (English) comes from Swedish Södermanland, from Old Swedish Suþermannaland, from Old Swedish länd, from Old Norse land, from Proto-Germanic landą, from Proto-Indo-European lendʰ- — land, heath; loins.

Ancestry of “Södermanland”, step by step

StepLanguageWordMeaning
1SwedishSödermanland
2Old SwedishSuþermannaland
3Old Swedishländland
4Old Norselandland
5Proto-Germaniclandąland, area of ground
6Proto-Indo-Europeanlendʰ-land, heath; loins
Every word from Proto-Indo-European lendʰ-Every word from Proto-Germanic landąEvery word from Old Norse land