psychopsy‧cho /ˈsaɪkəʊ $ -koʊ/ noun (plural psychos) [countable] 
Word Origin
Word OriginWORD ORIGINpsycho
ExamplesOrigin:
1900-2000 psychopathEXAMPLES FROM THE CORPUS
word sets- All his posse friends were psychos, deranged misfits who were cruel for kicks.
- Flesh-eating psycho played by Sir Anthony Hopkins is back in a slick, camp sequel.
- For all I knew she might have been a psycho or a girl with a little blackmail on her mind.
- These two raccoon-eyed psychos have lost none of their no-holds-barred energy or their penchant for writing catchy melodies.
- When the psycho is caught, then let go on a technicality, Mom takes matters into her own hands.
WORD SETS► Psychology/Psychiatry
informal someone who is mentally ill and who may behave in a violent or strange way—psycho adjectiveagoraphobia, nounagoraphobic, noun-aholic, suffixanalyse, verbanalysis, nounanalyst, nounanorexia, nounantidepressant, nounautism, nounbattle fatigue, nounbehaviourism, nounbreakdown, nounbulimia, nouncatharsis, nouncertify, verbclaustrophobia, nouncognition, nouncognitive, adjectivecomplex, nouncompulsive, adjectivecounsel, verbcounselling, nouncrazed, adjectivecrazy, adjectivedefence mechanism, noundelusion, noundemented, adjectivedementia, noundenial, noundepressed, adjectivedepression, noundepressive, adjectivedepressive, nounderanged, adjectivediminished responsibility, noundipsomaniac, noundisordered, adjectivedisturbance, noundysfunctional, adjectiveeating disorder, nouneccentricity, nounego, nounelectric shock therapy, nounemotional, adjectiveexhibitionism, nounextra-sensory perception, nounfixation, nounFreudian, adjectiveFreudian slip, noungroup therapy, nounhallucinate, verbhydrophobia, nounhypnosis, nounhypnotic, adjectivehypnotise, verbhypnotist, nounhypnotize, verbid, nouninferiority complex, nouninsane, adjectiveinsanity, nounkleptomania, nounkleptomaniac, nounlibido, nounlinear, adjectivemaladjusted, adjectivemania, nounmanic, adjectivemanic depression, nounmanic depressive, nounmental, adjectivemental age, nounmental hospital, nounmentally handicapped, adjectivemidlife crisis, nounmisogynist, nounmixed up, adjectivenerve, nounnervous, adjectivenervous breakdown, nounnervous system, nounneural, adjectiveneuro-, prefixneurology, nounneurosis, nounneurotic, adjectiveobsessive, nounoedipal, adjectiveOedipus complex, nounpadded cell, nounparanoia, nounparanoid, adjectivepathological, adjectivepathology, nounpatterning, nounphallic, adjectivephobia, noun-phobia, suffixphrenology, nounpost-traumatic stress disorder, nounprecognition, nounpsyche, nounpsychiatric, adjectivepsychiatrist, nounpsychiatry, nounpsychic, adjectivepsycho, nounpsycho-, prefixpsychoanalysis, nounpsychoanalyst, nounpsychoanalyze, verbpsychobabble, nounpsychodrama, nounpsychokinesis, nounpsychological, adjectivepsychologist, nounpsychology, nounpsychopath, nounpsychosis, nounpsychosomatic, adjectivepsychotherapy, nounpsychotic, adjectivepyromaniac, nounrepression, nounresidential treatment facility, nounRorschach test, nounsadism, nounsadist, nounsafety valve, nounsanity, nounscar, nounscar, verbschizoid, adjectiveschizophrenia, nounschizophrenic, adjectiveschizophrenic, nounscrewed up, adjectivesocialize, verbsociopath, nounsplit personality, nounsubconscious, adjectivesubconscious, nounsuggestion, nounsuperego, nountherapy, nountorment, nountrance, nountrauma, nounvoyeur, nounwell-adjusted, adjective