All the Dwarven city names start with フェオ - Feoh/Fehu, which roughly means (mobile) wealth, like cattle, sheep and the like. Probably named for prosperity.
The former Dwarven Capital is ベルカナ - Berkanan/Beorc, which means Birch.
The current Dwarven Capital is ジュラ - Jeran/Gēr, which means Harvest, or a (good) year.
The abandoned city to the south where Ainz found Gondo is ライゾ - Raido/Rad, which means ride, or journey.
Finally, the ruined Dwarven city is テイワ - Tiwaz, which corresponds to the rune for the god Tyr.
Many thanks to 黒輪-san for this information.