The money you are paid for holding political office is an example of emolument.
Origin of emolument
- Middle English from Latin ēmolumentum gain, originally a miller's fee for grinding grain from ēmolere to grind out ē-, ex- ex- molere to grind melə- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Old French emolument, from Latin emolumentum