Figure B. Psycho -path/-sis

Oxford’s and Webster’s Dictionaries on:

The psychopath: 1885 to 1986

1885 … ‘The psychopath … is a type which has only recently come under the notice of medical science … Beside his own person and his own interests, nothing is sacred to the psychopath’. … [OED, 1961]

1896 … They are ‘psychopathics’―a term which Prof. James, of Harvard University, employs to denote an inborn aptitude to immoral actions in any direction. [OED, 1961]

[1933] One affected with psychopathy; a mentally deranged person. [OED, 1961]

[1956] One who is morally irresponsible. [Webster’s, 1956]

[1986] 1: a mentally ill or unstable person : one with a poorly balanced personality structure : ECCENTRIC 2 : psychopathic personality …

[] psychopathic personality … 1 : a disorder of behavior toward other individuals or toward society in which reality is usually perceived except for an individual’s social responsibilities or moral obligations, which is often manifested hedonistically (as by criminal acts, drug addiction, sexual perversion, or activity leading to immediate gratification especially when it is believed that punishment can be avoided), by passive indifference (as by shiftlessness, untrustworthiness, or vagabondism), or in contrast by fanatical psuedo-social zealousness, and which is usually a more or less permanent way of life refractory to treatment and hence often considered a constitutional disorder 2 : an individual having a psychopathic personality. [Webster’s, 1986, italics added.]

Oxford’s and Webster’s Dictionaries on:

Psychosis: 1874 to 1986

1874 … No wonder that the criminal psychosis, which is the mental side of the neurosis, is for the most part an intractable malady, punishment being of no avail to produce a permanent reformation. [OED, 1961]

1879 … Pathologists call it a psychosis, as if it were a lesion of the unknown psyche. [OED, 1961]

1907… Feelings, moods, emotional consciousnesses or psychoses [OED, 1961]

[1933] 1. Pathology Any kind of mental affection or derangement; especially one which cannot be ascribed to organic lesion or neurosis (of NEUROSIS 1). … 2. Psychology A change in the psychic state; an activity or movement of the psychic organism, as distinguished from neurosis (NEUROSIS 2). … [OED, 1961]

[1956] … In psychiatry and psychology, any disease or disorder of the mind; any form of insanity. [Webster’s, 1956]

[1986] … 1 : profound disorganization of mind, personality, or behavior that results from an individual’s inability to tolerate the demands of his social environment whether because of the enormity of the imposed stress or because of primary inadequacy or acquired debility of his organism especially in regard to the central nervous system or because of combinations of these factors and that may be manifested by disorders of perception, thinking, or affect symptoms of neurosis, by criminality, or by any combination of these–distinguished from neurosis; compare INSANITY 2 : extreme mental unrest of an individual or of a social group especially in regard to situational factors of grave import … syn see INSANITY [Webster’s, 1986]