[3][4] In Pliny's Natural History, various manuscripts refer to this tribe as the Vadiocasses, Bodiocasses, or Bodicasses, likely due to a copyist’s mistake.
[5] The Vadicassii (Οὐαδικάσσιοι) cited by Ptolemy in the 2nd century AD are probably a separate tribe, since he places them near the Meldi (Meaux), in the direction of Belgica.
[6][7] The meaning of the second element -casses, attested in other Gaulish ethnonyms such as Durocasses, Sucasses, Tricasses, Veliocasses or Viducasses, has been debated, but it probably signifies '(curly) hair, hairstyle' (cf.
Most of the coins show a Celtic-style male head with elaborated hair on the obverse, and on the reverse a horse with a chariot rider above or behind, and below usually either a lyre or small boar.
The 4th-century Bordelaise poet Ausonius teases a friend as a Baiocassis who claimed to be of druidic heritage and descended from priests of Belenus.