noun.
The act of sharp-ening by friction; hence, something that provokes or stimulates; especially, something that whets the appetite, as a dram.
To make sharp; sharpen (an edged or pointed tool or weapon) by rubbing it on a stone, or with an implement of stone or other material.
To make sharp, keen, or eager; excite; stimulate: as, to whet the appetite.
To rub; scratch.
To prune or preen; trim.
To cut with a knife.