mortiferous

[ mawr-tif-er-uh s ]
/ mɔrˈtɪf ər əs /

adjective

deadly; fatal.

Origin of mortiferous

1525–35; < Latin mortiferus death-bearing, equivalent to morti- (stem of mors) death + -ferus -ferous

OTHER WORDS FROM mortiferous

mor·tif·er·ous·ness, noun