1) Departure 2) Desertion 3) Disappearance 4) Disappearing 5) Evaporation 6) Fading 7) Loss 1) Disappearing 2) Evanescent 3) Fading 4) Waning 
This ability is written Vanishing X. A permanent with vanishing enters the battlefield with X time counters on it. At the beginning of its controller's upkeep, a time counter is removed. When the last counter is removed, the card is sacrificed. Vanishing was introduced in Time Spiral and is an updated version of an older mechanic, fading. Vanishing...
• a. & n. from Vanish, v. • (p. pr. & vb. n.) of Vanish
Van'ish·ing adjective & noun from Vanish , v. Vanishing fraction (Math.) , 
[adj] - quickly going away and passing out of sight 2. [n] - a sudden or mysterious disappearance 3. [n] - suddenly disappearing from sight
vanishing 1. Beginning to disappear. 2. Suddenly disappearing from sight. 3. A sudden or mysterious disappearance. 4. Quickly going away and passing out of sight.
disappearing adjective quickly going away and passing out of sight; `all I saw was his vanishing back`