Appall

1. n. Terror; dismay.
2. a. To make pale; to blanch.
3. a. To weaken; to enfeeble; to reduce; as, an old appalled wight.
4. a. 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.
5. v. i. To grow faint; to become weak; to become dismayed or discouraged.
6. v. i. To lose flavor or become stale.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.