Voldemort

Etymology
After the evil wizard in the  series,  as a compound of. The verb sense derives from the fact that in the story, many characters refuse to call Voldemort by his proper name, calling him by euphemisms such as "He-Who-Must-Not-Be-Named" or "You-Know-Who". This may be due to Voldemort magically enforcing a ban on his name being spoken.

Noun

 * 1) An evil, harmful, or widely feared person or thing.

Verb

 * 1)  To avoid naming someone or something directly; to use circumlocution.