Ponerology
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In theology, ponerology (from Greek poneros, "evil") is a study of evil. Major subdivisions of the study are the nature of evil, the origin of evil, and evil in relation to the Divine Government.[1]
Karl Immanuel Nitzsch outlined his System der christlichen Lehre (System of Christian Doctrine) into three major rubrics: Agathology, or the Doctrine of the Good, Ponerology, of Doctrine of the Bad, and Soteriology, or the Doctrine of Salvation. He further subdivided ponerology into the topics of Sin and of Death[2][3]