Mortal comes from latin meaning "death". "Mortal" can mean having to do with humans, since humans die (as opposed to gods, who are "immortal"- they never die). "I am a mere mortal - I can only do so much"= I am only human. It can also mean having to do with death. "His would, unfortunately, was mortal." = The wound would result in his death.

mortal as an adjectives has many meanings: . 1. Liable or subject to death. 2. Of or relating to humankind; human: the mortal limits of understanding. 3. Of, relating to, or accompanying death: mortal throes. 4. Causing death; fatal: a mortal wound. 5. Fighting or fought to the death; unrelenting: a mortal enemy; a mortal attack. 6. Of great intensity or severity; dire: mortal terror. 7. Conceivable: no mortal reason for us to go. 8. Used as an intensive: a mortal fool. Mortal used as a noun means a human being. Example: I am a mere mortal.