Mentioned in 2Kings 17:30 of the Old Testament.
Not much is known about him. Tradition has it that he’s a hairless Goat God of Woods and Shepherds, which seems to be pandering towards PAN.
Many attempts have been made to identify him with other Gods of the region. The most plausible theory states that he’s a local River God named after the river Ashmaya. But no-one really knows and, after all this time, poor old ASHIMA is well and truly buried in obscurity.