Terms that are IN include: conversion disorder instead of hysteria, functional instead of psychosomatic (the two are not equivalent in any case), and psychological non-epileptic seizure— or P-NES (I kid you not)—instead of pseudoseizure, as in, “This lady has a P-NES.” That’s now a term of the art. It was coined either by someone with a very devious sense of humor, or no sense at all.
