Webster's Revised Unabridged Dictionary · 1913

Mortal

Mortal , adjective

[French mortel, Latin mortalis, from mors, mortis, death, from moriri 8die; akin to English murder. See Murder, and compare Filemot, Mere a lake, Mortgage.]

1.
Subject to death; destined to die; as, man is mortal.
2.
Destructive to life; causing or occasioning death; terminating life; exposing to or deserving death; deadly; as, a mortal wound; a mortal sin.
3.
Fatally vulnerable; vital.
Last of all, against himself he turns his sword, but missing the mortal place, with his poniard finishes the work. — Milton
4.
Of or pertaining to the time of death.
Safe in the hand of one disposing Power, Or in the natal or the mortal hour. — Pope
5.
Affecting as if with power to kill; deathly.
The nymph grew pale, and in a mortal fright. — Dryden
6.
Human; belonging to man, who is mortal; as, mortal wit or knowledge; mortal power.
The voice of God To mortal ear is dreadful. — Milton
7.
Very painful or tedious; wearisome; as, a sermon lasting two mortal hours. [Colloquial] — Sir W. Scott
Collocations (1)
Mortal foe or Mortal enemy , an inveterate, desperate, or implacable enemy; a foe bent on one's destruction.

Mortal , noun

A being subject to death; a human being; man.
Warn poor mortals left behind. — Tickell