pass away
pass away {v.}
1. To slip by; go by; pass.
We had so much fun that the weekend passed away before we realized it.
Forty years had passed away since they had met.
2. To cease to exist; end; disappear; vanish
When automobiles became popular, the use of the horse and buggy passed away.
3. To have your life stop; die.
He passed away at eighty.
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Source: A Dictionary of American Idioms
