A surname of Zeus, the protector of the sanctity of oaths. It was derived from a well, Asbamaeon near Tyana, in Cappadocia, the water of which was said to be beneficial and pleasant to honest persons, but pestilential to those who were guilty of perjury. When perjured persons drank of the water, it produced a disease of the eyes, dropsy, and lameness, so that the guilty persons were unable to walk away from the well, and were obliged to own their crime. (Philostr. Vit. Apollon. i. 6.; Pseudo-Aristot. Mirab. Auscult. 163; Ammian. Marcellin. xxiii. 6.)