a. Of or pertaining to a chain of mountains in the United States, commonly called the Allegheny mountains. [ 1913 Webster ]

☞ The name Appalachian was given to the mountains by the Spaniards under De Soto, who derived it from the neighboring Indians. Am. Cyc. [ 1913 Webster ]

v. t. [ imp. & p. p. Appalled p. pr. & vb. n. Appalling. ] [ OF. appalir to grow pale, make pale; a (L. ad) + pâlir to grow pale, to make pale, pâle pale. See Pale, a., and cf. Pall. ] 1. To make pale; to blanch. [ Obs. ] [ 1913 Webster ]

The answer that ye made to me, my dear, . . .
Hath so appalled my countenance. Wyatt. [ 1913 Webster ]

2. To weaken; to enfeeble; to reduce; as, an old appalled wight. [ Obs. ] Chaucer. [ 1913 Webster ]

Wine, of its own nature, will not congeal and freeze, only it will lose the strength, and become appalled in extremity of cold. Holland. [ 1913 Webster ]

3. To depress or discourage with fear; to impress with fear in such a manner that the mind shrinks, or loses its firmness; to overcome with sudden terror or horror; to dismay; as, the sight appalled the stoutest heart. [ 1913 Webster ]

The house of peers was somewhat appalled at this alarum. Clarendon. [ 1913 Webster ]

Syn. -- To dismay; terrify; daunt; frighten; affright; scare; depress. See Dismay. [ 1913 Webster ]

v. i. 1. To grow faint; to become weak; to become dismayed or discouraged. [ Obs. ] Gower. [ 1913 Webster ]

2. To lose flavor or become stale. [ Obs. ] [ 1913 Webster ]

n. Terror; dismay. [ Poet. ] Cowper. [ 1913 Webster ]

adj. 1. struck with fear, dread, or consternation.
Syn. -- aghast(predicate), dismayed, shocked. [ WordNet 1.5 +PJC ]

a. Such as to appall; as, an appalling accident. -- Ap*pall"ing*ly, adv. [1913 Webster]

n. Depression occasioned by terror; dismay. [ Obs. ] Bacon. [ 1913 Webster ]

n. 1. a hardy breed of horse developed in western North America and characteristically having a spotted rump. [ WordNet 1.5 ]