M / mōrĭo
noun

mōrĭo

gen. mōrōnis · gender masculine · decl. 3rd
an arrant fool; in lemm
an arrant fool (post-Aug.): quidam tantae sunt fatuitatis, ut non multum a pecoribus differant: quos moriones vulgo vocant, Aug. Ep. 26; Plin. Ep. 9, 17, 1 sq.; Mart. 8, 13; 14, 210 in lemm.
a monster, deformed person by extension
Transf., a monster, deformed person, Mart. 6, 39, 17.