Oium

Oium was a name for Scythia, or a fertile part of it, roughly in modern Ukraine, where the Goths, under a legendary King Filimer, settled after leaving Gothiscandza, according to the Getica by Jordanes, written around 551.

[4] Jordanes does not give an etymology, but many scholars interpret this word as a dative plural to a noun, widespread in the Germanic languages, whose Proto-Germanic reconstruction is *awjō and which means 'well-watered meadow' or 'island'.

This noun is generally derived from the Proto-Germanic word *ahwō 'water; stream, river' (whence Gothic aƕa 'river'), which is cognate with Latin aqua 'water'.

[7] Returning to his narrative, Jordanes described the area where Filimer subsequently moved his people and settled as being near the Sea of Azov, noting that there are verbal legends around about Gothic origins, but that he prefers to trust what he reads: According to Jordanes, the Goths left Oium in a second migration to Moesia, Dacia and Thrace, but they eventually returned, settling north of the Black Sea.

[14] Historians such as Peter Heather, Walter Goffart, Patrick Geary, A. S. Christensen and Michael Kulikowski have criticized the use of the Getica as a source for details about real Gothic origins.

[18] However the attribution of places, people, and events in the saga is confused and uncertain, with multiple scholarly views on who, where, and what real things the legend refers to.