O.E. deofol "evil spirit," from L.L. diabolus, from Gk. diabolos "accuser, slanderer" (scriptural loan-translation of Heb. satan), from diaballein "to slander, attack," lit. "throw across," from dia- "across, through" + ballein "to throw." Jerome re-introduced Satan in L. bibles, and Eng. translators have used both in different measures

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