The study shows that schizophrenia and affective disorder co-occur in some families.
co-occur in American English
(ˌkouəˈkɜːr)
intransitive verbWord forms: -curred, -curring
to appear together in sequence or simultaneously
Also: cooccur
Derived forms
co-occurrencecooccurrence
noun
Word origin
[1950–55]This word is first recorded in the period 1950–55. Other words that entered Englishat around the same time include: action painting, drip-dry, point spread, point-of-sale, wiretap