Webster's Revised Unabridged Dictionary · 1913

Dismay

Dismay , transitive verb

[Old English desmaien, dismaien, Old French esmaier; pref. es- (Latin ex) + Old High German magan to be strong or able; akin to English may. In English the pref. es- was changed to dis- (Latin dis-). See May, v. i.]

1.
To disable with alarm or apprehensions; to depress the spirits or courage of; to deprive or firmness and energy through fear; to daunt; to appall; to terrify.
Be not afraid, neither be thou dismayed. — Josh. i. 9
What words be these? What fears do you dismay? — Fairfax
2.
To render lifeless; to subdue; to disquiet. [Obsolete]
Do not dismay yourself for this. — Spenser
So flies a herd of beeves, that hear, dismayed, The lions roaring through the midnight shade. — Pope
Jove got such heroes as my sire, whose soul No fear could daunt, nor earth nor hell control. — Pope
Now the last ruin the whole host appalls; Now Greece has trembled in her wooden walls. — Pope

Dismay , intransitive verb

To take dismay or fright; to be filled with dismay. [Obsolete] — Shakespeare

Dismay , noun

[Compare Old French esmai, French émoi. See Dismay, transitive verb]

1.
Loss of courage and firmness through fear; overwhelming and disabling terror; a sinking of the spirits; consternation.
I... can not think of such a battle without dismay. — Macaulay
Thou with a tiger spring dost leap upon thy prey, And tear his helpless breast, o'erwhelmed with wild dismay. — Mrs. Barbauld
2.
Condition fitted to dismay; ruin. — Spenser