bonus
bo.nus \'bo--n*s\ n [L, good - more at BOUNTY] 1: something given in addition to what is usual or strictly due Brit 2a: DIVIDEND 2b: money or an equivalent given in addition to an employee's usual compens ation 2c: a premium given by a corporation to a purchaser of its securities, to a promoter, or to an employee 2d1: a government subsidy to an industry 2d2: a government payment to war veterans 3: a sum of money in addition to interest or royalties charged for the gran ting of a loan or privilege to a company, or for the lease or transfer of property
Webster's English Dictionary