languor
词根词缀：
languid adj. 倦怠的
langu 虚弱，疲倦 + id …的 → 倦怠的
languish v. 倦怠
langu 虚弱，疲倦 + ish 使… → 倦怠
languor n. 衰弱
langu 虚弱，疲倦 + or 表状态 → 衰弱
数据来源：新东方英语词汇速记大全
相关例句：
The humid languor of that Manhattan evening.
那曼哈顿黄昏的潮湿沉闷。
It was very like a sea, this deadly languor, that rose and rose and drowned his consciousness bit by bit.
这种要命的疲倦，就像大海一样，一浪又一浪地涨过来，一点一点地吞噬着他的意识。
Moderation is the languor and sloth of the soul, Ambition its activity and heat.
节制是灵魂的无力和懒散，而野心却是灵魂的活跃和动力。
Talking about the Psychological Health and Psychological Adjustment of University Librarians The Mental Adjustment of the Teacher Occupational Languor in Vocational Colleges
浅谈高校图书馆员的心理健康及心理调适高职院校教师职业倦怠的心理调适
He affected a manner of extreme languor and debility.
他装出一副极度虚弱无力的样子。
The Mental Adjustment of the Teacher Occupational Languor in Vocational Colleges
高职院校教师职业倦怠的心理调适