nec ‧ ro ‧ man ‧ cy /ˈnekrəmænsi/ BrE AmE noun [uncountable]
[ Date: 1200-1300 ; Language: Late Latin ; Origin: necromantia , from Greek , from nekros 'dead body' + manteia 'telling the future' ]
1 . magic, especially evil magic
2 . literary the practice of claiming to talk with the dead
—necromancer noun [countable]