- OOCly, it is named after Ebisu, the Japanese god of fishermen and luck.
- In-lore, it was named by The Ōmagato Empire of the Unknown, during the last age of the New World before the exodus. The current Fey of Aseron's Court kept the name for their own usage.
- The Ebissian Sea used to be smaller, and populated by a bigger number of isles and islands, which were also much larger. The catastrophe that killed off the Achaean civilisation affected this region and the southern parts of what is today the Sea of Stone. The region was quite literally shattered, drowning a lot of the isles, pushing the coastline deeper inland, and obliterating the land bridge that connected the Millennium Forest of Watchers' Island and Eastern Landmass™. One of the only remnants of this bridge is the Garland, while the apocalyptic destruction can still be seen in the form of the Broken Beach and the Shattered Shore.