perquisite

A payment, profit, or benefit received in addition to a regular wage or salary, especially when due or expected.

Something regarded or claimed as an exclusive right by virtue of one’s social position or rank: synonym: right.

A gratuity; a tip.

An incidental emolument, profit, gain, or fee, over and above the fixed or settled income, salary, or wages; something received incidentally and in addition to regular wages, salary, fees, etc.

In law, whatever one gets by industry or purchases with his money, as distinguished from things which come to him by descent.

That may or must be sought out.

Something gained from a place or employment over and above the ordinary salary or fixed wages for services rendered; especially, a fee allowed by law to an officer for a specific service.

Things gotten by a man’s own industry, or purchased with his own money, as opposed to things which come to him by descent.

Any monetary or other incidental benefit beyond salary.

A gratuity.