lay something to rest
lay (someone or something) to rest
1. To bury someone who has died. Paul will be laid to rest on Saturday, and I plan to go to the funeral service.
2. By extension, to stop or finish discussing, thinking about, or focusing on something. OK, I think we have to agree to disagree. Let's just lay the issue to rest and stop arguing. Why are you still being so jealous? I thought we'd laid this all to rest ages ago.
lay something to restor
put something to rest
If you lay something such as fears or rumours to rest or if you put them to rest, you succeed in proving that they are not true. His speech should lay those fears to rest. I am determined to put to rest these rumours that we are in financial trouble.