Greek νέκυς (nékus, “corpse”) + μαντεία (manteía, “divination”). Compare the French <span class="searchmatch">necyomance</span>. <span class="searchmatch">necyomancy</span> (uncountable) Alternative form of necromancy....
English Wikipedia has an article on: Necromancy Wikipedia <span class="searchmatch">necyomancy</span>, egromancy Circa 1300, from Middle English nigromancye, from Old French nigromancie...