lay to rest
lay to rest {v. phr.}, {informal}
1. To put a dead person into a grave or tomb; bury.
President Kennedy was laid to rest in Arlington National Cemetery.
2. To get rid of; put away permanently; stop.
The Scoutmaster's fears that Tom had drowned were laid to rest when Tom came back and said he had gone for a boat ride.
The rumor that the principal had accepted another job was laid to rest when he said it wasn't true.
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Source: A Dictionary of American Idioms
