Complex sentence: Melchom is a demon or spirit in the Dictionnaire Infernal, Melchom is the god or idol of the Ammonites, otherwise called Moloch, and Melech: which in Hebrew signifies a king, and Melchom signifies their unearthly king.
Split into simpler sentences: Melchom is a demon or spirit in the Dictionnaire Infernal. It is the god or idol of the Ammonites, otherwise called Moloch, and Melech: which in Hebrew signifies a king, and Melchom signifies their unearthly king.