The Collaborative International Dictionary
Diabolify
Diabolify \Di`a*bol"i*fy\, v. t. [L. diabolus devil + -fy.]
To ascribed diabolical qualities to; to change into, or to
represent as, a devil. [R.]
--Farindon.
Wiktionary
diabolify
vb. (context transitive English) To ascribe diabolical qualities to; to change into, or represent as, a devil.