(bound form) a disease characterized by heat or damp-heat, such as certain types of malaria or fire-fever; specifically used in 火瘅 huǒ​dān

(literary) to hate or detest; specifically used in the phrase 彰善瘅恶 zhāng​shàn​dàn'è to distinguish between good and evil

(literary) to suffer or fall ill from overwork or exhaustion

(literary) intense; severe; extreme (referring to heat, anger, etc.)