van•ish^*ˈvæn ɪʃ(v.i.)

1. to disappear quickly from sight; become invisible.

2. to go away, esp. furtively:

   The thief vanished in the night.

3. to come to an end.

4. (of a number, quantity, or function) to become zero.

   Category: Math

5. (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 )

van′ish•er(n.)