Definitions for vanisher
Random House Webster's College Dictionary
to disappear quickly from sight; become invisible.
to go away, esp. furtively:
The thief vanished in the night.
to come to an end.
(of a number, quantity, or function) to become zero.
(v.t.)to cause to disappear.
* Syn: See disappear.
Origin of vanish:
1275–1325; ME < MF evaniss-, long s. of e(s)vanir蠐 L ēvānēscere= ē- e - +vānēscere to pass away (vān(us)vain+-ēscere -esce )
a person who disappears