To EDGE,
or, as 'tis vulgarly call'd, To EGG one on; to stimulate, provoke, push forwards, so sharpen, or whet on for Mischief.
· 
· 
Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
To Edge in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).