diabologue/daɪˈæbəlɒɡ/EtymologyBlend of Ancient Greek διάβολος (diábolos) and English -logue.diabologue means A book or litany of sayings and quotations attributed to Satan. Lexicurio rates it Rare gem — a strength score of 73 out of 100.nounA book or litany of sayings and quotations attributed to Satan.