Emolument and Rake-off

Emolument noun - The money paid regularly to a person for labor or services.

Rake-off and emolument are semantically related In some cases you can use "Rake-off" instead a noun "Emolument".

Rake-off noun - A percentage (of winnings or loot or profit) taken by an operator or gangster.

Emolument and rake-off are semantically related in charge for service or privilege topic. Sometimes you can use "Emolument" instead a noun phrase "Rake-off".