corvée
/ˈkɔːveɪ/noun
1- historical a day's unpaid labour owed by a vassal to his feudal lord〈史〉徭役（农奴欠封建地主的一天无偿劳动）。
1.1
- mass noun forced labour exacted in lieu of taxes, in particular that on public roads in France before1776（用以抵充税款的）强征劳役（尤指1776年前法国修筑公路的劳役）。
词源
Middle English: from Old French, based on Latin corrogare 'ask for, collect'. Rare in English before the late 18th cent.