How to 'undelete' an inadvertently deleted post?

I inadvertently deleted a post and had already left the topic when I got aware of my mistake.
How can I make the deletion undone?
The topic was
In fact I wanted to delete my own comment.


No one had commented until deleted? Do not appear in your activity?

“If you throw it in the trash and it doesn’t give you creeps, it’s not important” :wink: