insanity Copy link Outline 1. insānia (in widest sense)2. fŭror (rare in this sense)3. dēmentia • insanity: 1. insānia (in widest sense): Cic. Tusc. 3, 4, 8: Cels. More freq. fig.: v. madness. 2. fŭror (rare in this sense): Hor. Ep. 1, 2, 62. 3. dēmentia: Just. 2, 7: v. folly, madness.