When the planet was first created, the First Builders asked it for its name. It answered: "Ûl. The source. The foundation of all things. I will be the mother of mountains and seas, the father of fire and living things." The First Builders looked at each other and One sucked air through its teeth and spake: "Ooh, ehm...Are you sure? It's a bit long, what with all the, ehm, explanation." Ûl did not reply but instead started its song, the song which would continue until it would cease to exist. The song which would guide its tides and seasons, and inspire its denizens to aspire and create of themselves. The First Builders slowly moved away giving each other Significant Looks, for they knew that from this moment on, holiday visits would be awkward and would seem to take for ever..
-Metthos
Dungeons & Dragons 5e