> There is a Gaulish goddess Andraste or Andarte, isn't there?
A British goddess Andrasta and a gaulish Andarta. The second name
surely means "Great Bear" (intensive prefix and- + arto- "bear").
Andrasta is harder to analyze - the name, as recorded in Dio Cassius
(it's only source), might even be corrupt - some have suggested it
should amended to *An[d]casta, since we have an inscription dedicated
to a Dea Ancasta from Britain.
There is a Spanish god Andero who was identified with Jupiter, by the
way. This might be related to Welsh anner (from Brittonic
*andera) "heifer", but Gaulish had a root andero- meaning "below,
infernal" - which would be an odd choice for a Jovian god, but we may
not undertsand the particular of this specific interpretatio Romana.
- Chris Gwinn