What is "bormana"

Bormana is a Celtic goddess, the female equivalent of the god Borvo (Bormanus). Bormana was often worshipped alongside of Bormanus as his consort. The pair of them were, for example. worshipped at Die ( Drôme in the south of France. The goddess also occurred independently: thus at Saint-Vulbas ( Ain), Bormana was worshipped on her own, there being no mention of Bormanus.