[verb] [T] [past:] overpaid - to pay a larger amount than is necessary or correct, esp. to pay (someone) too much when they do not deserve itThe scheme offers home buyers the option to overpay their mortgage by amounts of £50 to £500 a month.There were claims that the men had been overpaid for the job (= have been paid more than they should have been).
OVERPAY
Meaning of OVERPAY in English
Cambridge English vocab. Кембриджский английский словарь. 2012