go back

to return:
That restaurant was terrible - I'm never going back there again.
I'll have to go back for my umbrella.
Do you think you'll ever go back to London?
When do you go back to school?
Let's go back to the beginning and start again.
We can always go back to the original plan if necessary.
After six months of chopping and changing, we've decided to go back to our old system.
We realized we had taken the wrong road and had to go back.
"I'm never going back to him," she said, setting her jaw firmly.
Do you ever go back to any of our old stamping grounds?
I'll just turn the car round and go back the way we've come.

to be returned:
When are these library books supposed to go back ?
That TV will have to go back to the shop - it hasn't worked properly ever since I bought it.

to have existed since a time in the past:
Their relationship goes back to when they were at college together.
Our house goes back to (= has existed since) the 18th century.
(Cambridge Advanced Learner's Dictionary & Thesaurus からの go back の定義 © Cambridge University Press)

- Cambridge Dictionary