Wikipedia
The Dobunni were one of the Iron Age tribes living in the British Isles prior to the Roman invasion of Britain. There are seven known references to the tribe in Roman histories and inscriptions.
Various historians and archaeologists have examined the Dobunni, including Stephen J. Yeates in his book The Tribe of Witches (2008), where he suggests that the latter part of the name possibly derives from *bune, a cup or vessel, with a similar meaning to the later tribal name Hwicce; both being related to the recognisable cult of a Romano-British goddess. This view has been sharply criticised by several archaeologists. Archaeologist Miles Russell suggests that their original name may have been "Bodunni", connecting this with the Celtic word *bouda meaning "Victorious", in the sense of "The Victorious Ones".