vanish away
To disappear entirely. And just like that, my dreams of ever competing in the Olympics vanished away. The remnants of this ancient civilization have all but vanished away.
vanish away
to disappear. (The away is considered redundant.) The pizza vanished away in no time at all. The city lights vanished away as dawn broke.
vanish away
v. To disappear gradually but completely: I had to wash the shirt five times before the grass stain vanished away.