1775, "acting upon or stimulating the nerves," from Gk. neuron "nerve" (see neuro-) + -otic, as in hypnotic. Sense of "affected by neurosis" is 1887. The noun meaning "a neurotic person" is from 1896.
neurotic neu·rot·ic (n&oobreve;-rŏt'ĭk, ny&oobreve;-) adj. Of, relating to, derived from, or affected with a neurosis. n. A person suffering from a neurosis.