IPA: /ˈkʌm.bæk/
KK: /ˈkʌmˌbæk/
A return to a previous state of success or popularity, often after a period of decline.
After several years away from the spotlight, the singer made a remarkable comeback with a new album.
Comeback → It is formed from "come" (from Old English "cuman", meaning to arrive or move toward) and "back" (from Old English "bæc", meaning the rear or reverse direction). The word "comeback" refers to the act of returning or regaining a position after a setback or defeat.
Think of someone 'arriving' ('come') again from the 'rear' ('back') — that's why a comeback means returning to a previous state or position.