(Ἀκέστωρ). A surname of Apollo which characterises him as the god of the healing art, or in general as the averter of evil, like ἀκέσιος. (Eur. Andr. 901.)
[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