CANTING,
the mysterious Language of Rogues, Gypsies, Beggars, Thieves, &c.
· 
· 
Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
· ·
Canting in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).