cacodemon
Concise Oxford English Dictionary © 2008 Oxford University Press:
cacodemon /ˌkakə(ʊ)ˈdiːmən/
▶noun a malevolent spirit or person.
– origin C16: from Gk kakodaimōn, from kakos ‘bad’ + daimōn ‘spirit’.
'cacodemon' also found in these Oxford entries:

