Religious Glossary - common terms used related to Religion
Druids - A religious order. Functions included arbitration,
pronouncements on public policy, enchantment and divination.
Some druids, such as Merlin, were expert in shapechanging
while others, like the prophetess Veleda, were seers. Druid
bards (bardoi) specialized in the composition of songs and
tales which transmited history and knowledge. (ancuairt)
In the Celtic religion, the word Druid denotes the priestly
class in ancient Celtic societies which existed through much
of Western Europe north of the Alps and in the British Isles.
Druidic practices were part of the culture of all the tribal
peoples called Keltoi and Galatai by Greeks and Celtae and
Galli by Romans, which evolved into modern English "Celtic"
and "Gaulish". (wikipedia)