(Greek) Diabolos (διάβολος, ον)

In Matthew 4:5, the being tempting Christ is called ὁ διάβολος, literally “he who casts by”, used of a person who makes generally false accusations. In Revelation chapter 12 we saw equated “the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world.” All those who oppose God do such things, and therefore the idea of a false accuser is associated with the Adversary, or Satan, that entire race of the serpent's offspring which is called at Revelation “the accuser of our brethren”, an example of which is that devil which made false accusations concerning Job.