Etymology tree
English schizophrenia
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English schizophrenicclip.
English schizo
Clipping of schizophrenic.
Meanings
(derogatory, offensive, slang) crazy, not of sound mind
Etymology tree
English schizophrenia
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English schizophrenicclip.
English schizo
Clipping of schizophrenic.
Meanings
(derogatory, offensive, slang) Schizophrenic.
"Lucky for you you aren't in one of our great public hospitals; they put the loonies next to the heroin addicts, and there's so much drug traffic in the wards that the poor schizos end up with bad habits." 1988, Salman Rushdie, chapter IX, in The Satanic Verses, page 558:
(colloquial, derogatory, offensive) A mad or crazy person.