(Ἀρεῖος), a surname of Zeus, which may mean either the warlike or the propitiating and atoning god, as Areia in the case of Athena. Under this name, Oenomaus sacrificed to him as often as he entered upon a contest with the suitors of his daughter, whom he put to death as soon as they were conquered. (Paus. 5.14.5.)
[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