kleśa: mental state, such as love, greed, hate, anger, doubt, conceit, shamelessness, etc, that clouds the mind and leads to unwholesome actions. · lust, passion, or desire, especially one this is defiling and overmastering.
köken: From Pali kilesa (“depravity; depravedness”). Cognate with Lao ກິເຫຼດ (ki lēt), ກິເລດ (ki lēt), Old Khmer kilesa, kilessa (“licentiousness, lust; depravity, dissoluteness, defiling passions”); Modern Khmer កិលេស (keleeh).