quietus

n. 解脱, 生命的终止, 偿清
【法】 偿清, 解除, 清除

qui.e.tus

n.（名词）
Something that serves to suppress, check, or eliminate.
抑制物：用来压制、控制或消除的事物
Release from life; death.
死；解脱：从生命中解脱出来；死亡
A final discharge, as of a duty or debt.
债务清偿：最后清偿，如义务或债务

来源：
Short for Middle English quietus (est) [(he is) discharged (of an obligation)]
中古英语 quietus (est) 的简写 [（他）被免除了（一义务）]
from Medieval Latin quiôtus (est)
源自 中世纪拉丁语 quiôtus (est)
from Latin [(he is) at rest] * see quiet
源自 拉丁语 [（他）在休息] *参见 quiet