A variety of Greek terminology used in tragic drama is translated simply as ‘madness’: anoia is absence of nous (mental reasoning); paranoia, a sidestep away from nous; paraphron, movement away from phren (the mind); oistros, a fly that bites cows (irritating and persistent) and might refer to an unrelenting passion; lussa, a violent rage closely associated with wolves. Most commonly mania was used, a term related to menos – a violent force, perhaps originally meaning ‘blood’. The terminology of the theatre has proved an enduring influence on psychiatric nomenclature, in contrast to ancient Greek clinical diagnoses such as melancholia and hysteria.