Stir-crazy originated as a word to describe a prisoner who became distraught after prolonged confinement. Stir is a 19th-century slang word for "prison" that some word historians have suspected to be from Romani stariben, of the same meaning. But a convincing argument of that origin has yet been made. Today, stir-crazy describes any person who has become restless, agitated, or anxious from being or feeling entrapped in some place.