uncredit

verb2

1. •
   To deduct the amount of payment that was previously credited to an account.

   • But, unfortunately, if the promises to pay are not fulfilled, the Reparation Commission will later have to uncredit Germany's account. — 1972
2. •
   (no longer used) To cause to be disbelieved; to discredit.

   • Then was it Kilvert's design to uncredit the testimony of Pregion — 1655