to unexchange / to reverse an exchange
verb/dɨʃ.tɾu.ˈkaɾ/low
des·tro·car
Definitions
1To undo or reverse an exchange that has been made.
If you're not happy with the swap, you can unexchange the items.
She decided to reverse the exchange and get her old phone back.
2To cancel a barter or trade agreement.
The clubs had to undo the player trade due to contractual issues.
They agreed to undo the property exchange.
Etymology
Derivação prefixal: des- + trocar.