What is "verbeia"

In ancient Celtic polytheism, Verbeia was a goddess worshipped in Roman Britain. She is known from a single altar-stone dedicated to her at Ilkley (RIB 635). She is considered to have been a deification of the River Wharfe.

An image of a woman (also from Ilkley) may represent the goddess: she is depicted with an overlarge head and schematic features; she wears a long, pleated robe and she has two large snakes, represented as geometric zig-zags, which she grasps, one in each hand.