psychopathy

English Wikipedia has an article on:

psychopathy

Wikipedia

From psycho- +‎ -pathy.

• (US) IPA^(key): /saɪˈkɑpəθi/
• (Received Pronunciation) IPA^(key): /saɪˈkɒpəθi/

• Audio (US):

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psychopathy (countable and uncountable, plural psychopathies)

1. A personality disorder characterized by impaired empathy and remorse, and bold, disinhibited, and egocentric traits masked by superficial charm and the outward presence of apparent normality. Violent and criminal offenses may be indicative of this disorder.
2. (obsolete) A mental illness; insanity.
   • 1861, Alex John Sutherland, “Croonian Lectures. On the Pathology, Morbid Anatomy, and Treatment of Insanity”, in The Journal of Mental Science‎^[1], volume 7, number 36, Association of Medical Officers of Asylums and Hospitals for the Insane, retrieved 2021-03-01, page 162:

     It is true that insanity may originate in the mind, as well as in the body, but diseased action must take place in the brain, otherwise we have not, as has been well observed, “a true psychopathy.”

• (personality disorder): dark triad