Zoanthropy

zō-an′thrō-pi, n. a form of mental delusion in which a man believes himself to be a beast—the devout divine, Simon Browne (1680-1732), under this belief devoted himself to the making of a dictionary—'I am doing nothing,' he says, 'that requires a reasonable soul: I am making a dictionary.'— adj. Zōanthrop′ic . [Gr. zōon , an animal, anthrōpos , a man.]