Whet

1. n. That which whets or sharpens; esp., an appetizer.
2. v. t. To rub or on with some substance, as a piece of stone, for the purpose of sharpening; to sharpen by attrition; as, to whet a knife.
3. v. t. To make sharp, keen, or eager; to excite; to stimulate; as, to whet the appetite or the courage.
4. n. The act of whetting.

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.