The Collaborative International Dictionary of English v.0.48:
Whet \Whet\, v. t. [imp. & p. p. Whetted; p. pr. & vb. n.
Whetting.] [AS. hwettan; akin to D. wetten, G. wetzen, OHG.
wezzen, Icel. hvetja, Sw. v[aum]ttja, and AS. hw[ae]t
vigorous, brave, OS. hwat, OHG. waz, was, sharp, Icel. hvatr,
bold, active, Sw. hvass sharp, Dan. hvas, Goth. hwassaba
sharply, and probably to Skr. cud to impel, urge on.]
1. 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.
The mower whets his scythe. --Milton.
Here roams the wolf, the eagle whets his beak.
2. To make sharp, keen, or eager; to excite; to stimulate;
as, to whet the appetite or the courage.
Since Cassius first did whet me against Caesar,
I have not slept. --Shak.
To whet on, To whet forward, to urge on or forward; to