IPA: /ˈpeɪbæk/
KK: /ˈpeɪˌbæk/
The amount of money or benefit received as a result of a previous action or investment.
The payback from the project was much higher than we expected.
Payback → It is formed from "pay" (from Old French *paier*, meaning to settle a debt or give money) and "back" (meaning in return or to the original place). The word "payback" refers to the act of returning what is owed or giving something back, often in a context of repayment or retribution.
Think of settling a debt ('pay') and returning it ('back') — that's how payback means to give back what is owed.