mortifer

Etymology
From, literally “death-bearing”. .

Adjective

 * 1) deadly, fatal, lethal
 * 2) * Gospel of Mark, Vulgate, from 16:18
 * Et sī mortiferum quid biberint nōn eōs nocēbit.
 * And if they drink anything deadly it shall not harm them.

Etymology
or.

Adjective

 * 1) lethal