exaction
/ɪgˈzækʃən/noun
mass noun
1- formal the action of demanding and obtaining something from someone, especially a payment or service〈正式〉强索; 强征：
he supervised the exaction of tolls at various ports.
他负责监督各港口的通行费收取工作。
1.1
- count noun a sum of money demanded in such a way强索的钱。
1.2
- count noun an act of demanding unfair and exorbitant payment; an act of extortion敲诈; 勒索。
词源
late Middle English: from Latin exactio（n-）， from exigere 'ascertain, perfect, enforce' （see EXACT）.