👉 Fingent is a noun that refers to a person who has an acute mental disorder. It was first used in the 18th century by French psychiatrist Jean-Charles de Lassus, who described it as a "disease of the mind" characterized by difficulty with speech and language, memory problems, and social isolation. The term is often associated with schizophrenia, a severe form of depression that can cause hallucinations, delusions, and disorientation.