1. Belong to an earlier time
   "This story goes back 200 years";
   - date back, date from
    
2. Return in thought or speech to something
   "Let's go back to the main point of our discussion";
   - recur
    
3. Regain a former condition after a financial loss
   "We expect the stocks to go back to $2.90";
   - recover, recuperate

Derived forms: gone back, went back, going back, goes back

Type of: come back, father, hark back, initiate, originate, recall, regress, retrovert [rare], return, revert, start, turn back