1) Rebate 1) Restore 
An agreement in which employees accept a wage reduction or fewer benefits as a gesture of goodwill, usually because of an economic downturn. The employees are often offered wage rises and new benefits at a later date
(in union negotiations) a reduction in employee wages or benefits conceded by a union in exchange for other benefits or in recognition of depressed economic conditions: Givebacks have not slowed the number of shutdowns. · something returned, rebated, etc.: Givebacks to dealers have increased car sales.