mental illness; anxiety-induced sickness
Obsolete term for a disease of the mind or illness caused by worry. Not used in modern medical or everyday Japanese.
In old documents, the word 心疾 is used to refer to mental illness.
A Sino-Japanese compound of 心 (heart/mind) and 疾 (illness). The exact historical usage is uncertain, but it appears in older texts as a term for mental or emotional disorders.