Grimm took Forseti, "praeses, princeps", to be the older form of the name, first postulating the Old High German equivalent *forasizo (cf.
[1] but later preferring a derivation from fors, a "whirling stream" or "cataract", connected to the spring and the god's veneration by seagoing peoples.
"[8] However, as de Vries points out, the only basis for associating Forseti with justice seems to have been his name; there is no corroborating evidence in Norse mythology.
[10] The first element in the name Forsetlund (Old Norse Forsetalundr), a farm in the parish of Onsøy ('Odin's island'), in eastern Norway, seems to be the genitive case of Forseti, offering evidence he was worshipped there.
According to Alcuin's Life of St. Willebrord, the saint visited an island between Frisia and Denmark that was sacred to Fosite and was called Fositesland after the god worshipped there.
[18] Jacob Grimm noted that if, as Adam of Bremen states, Fosite's sacred island was Heligoland, that would make him an ideal candidate for a deity known to both Frisians and Scandinavians, but that it is surprising he is never mentioned by Saxo Grammaticus.
[20] In the 2002 Ensemble Studios game Age of Mythology, Forseti is one of 9 minor gods Norse players can worship.