psy·chot·ic I. \(ˈ)sī|käd.]ik, -ät], ]ēk\adjective Etymology: International Scientific Vocabulary, from New Latin psychosis, after such pairs as New Latin narcosis : English narcotic : of, relating to, or marked by psychosis < suffered a psychotic break from reality — K.S. Felton > < he is psychotic and unable to stand trial — David Abrahamsen > • psy·chot·i·cal·ly\]ə̇k(ə)lē, ]ēk-, -li\adverb II. noun (-s) : a psychotic individual