The article is a study of the ways the mythical concepts of the English mythological conceptual world-view are reflected in the Old English lexis. To explain this, we combine all the concepts under analysis into conceptual segments according to their dominant conceptual features. In the article, we specifically dwell on the conceptual segment of the RELIGIOUS SPHERE, which integrates three sub-segments, GOD (god), DEVIL (deofol), and RELIGIOUS/SPIRITUAL NOTIONS.