recoupment

From recoup +‎ -ment.

recoupment (countable and uncountable, plural recoupments)

1. A recovery of what had been lost; reimbursement.
   • 1879, John Neilson Taylor, A Treatise on the American Law of Landlord and Tenant, page 321:

     The doctrine of recoupment is of recent growth, hardly preceding in its origin the beginning of the present century.

2. (law) A reduction of the plaintiff's damages by keeping out a part.

• recoup