Dumnonii the origin of the interpretation of Dumnonii as "deep valley dwellers" from his understanding of the Welsh of his time. John Rhys later theorized that the tribal name was derived from the name of a goddess, "Domnu", probably meaning "the goddess of the deep". The proto-Celtic root *dubno- or *dumno- meaning "the deep" or "the earth" (or alternatively meaning "dark" or "gloomy") appears in personal names such as Dumnorix and Dubnovellaunus. Another group with a similar name but with no known links were the Fir Domnann of Connacht. The Roman name of the town of Exeter, "Isca Dumnoniorum" ("Isca of
Roman Catholic Diocese of Rapid City Roman Catholic Diocese of Rapid City The Roman Catholic Diocese of Rapid City () is a Roman Catholic diocese in western South Dakota, United States. The current bishop of the diocese is Bishop Robert Dwayne Gruss. It is a suffragan see of the Archdiocese of Saint Paul and Minneapolis. The See city for the diocese is Rapid City. The Cathedral parish is the Cathedral of Our Lady of Perpetual Help. On August 6, 1902 Saint Pius X established the diocese as the Diocese of Lead. Its territory was taken from the Diocese of Sioux Falls. The name of the diocese