The English-Latin noun vates /ˈveɪtiːz/ is a term for a prophet, following the Latin term. It is the origin of the English term ovate for an Irish bard.
In pagan Rome the vates resided on the Vatican Hill, the Hill of the Vatii. Indeed, the Vatican Hill takes it name from the Latin word Vaticanus, a vaticiniis ferendis, in allusion to the oracles, or Vaticinia, which were anciently delivered on the Vatican Hill.
Druids, Vates (or Ovates) and Bards represented the three classes of Celtic priesthood, according to the Ancient Greek writers. Druids played the important role in the Celtic society dealing with magic, religious rites, worship and sacrifices, judicial procedures, literature and language, philosophy, astronomy and medicine. Vates had the role of seers, prophets and performed sacrifices, while Bards were poets and musicians who collected oral traditions, serving to preserve history and spread the fame of brave warriors and kings.