The phrase "to put back" means to return something to its original place or condition. It can also mean to postpone, delay or stop doing something that was previously planned.
Sentences with «to put back»
When they change a diaper, only to find that it is dry, they think that there's no harm in putting it back on. (babygaga.com)
Then put it back into your wallet (or purse). (redeeminggod.com)
So after falling off the wagon last week, I wanted to focus this week on putting myself back together. (health.com)