setoff

(sĕtˈôfˌ, -ŏfˌ)

1. Something, such as a decoration, that sets off something else by contrast.
2. Something that offsets or compensates for something else; a counterbalance.
3. a. A counterclaim.
   b. Settlement of a debt by a debtor's establishing such a claim against a creditor.
4. Architecture A flat projection, as from a wall; a ledge.
5. Printing See offset.