M / mūrĭcīdus
noun

mūrĭcīdus

gen. mūrĭcīdi · gender masculine · decl. 2nd
(), , perh. mus-caedo, mouse-killer
a coward, poltroon
a coward, poltroon, as a term of abuse: vae tibi muricide homo, Plaut. Ep. 3, 1, 12; cf. Paul. ex Fest. p. 125 Müll.