(Ἀξιόποινος), the avenger, a surname of Athena. Under this name Heracles built a temple to the goddess at Sparta, after he had chastised Hippocoon and his sons for the murder of Oeonus. (Paus. 3.15.4.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890