Dictionary definitions from Nathan Bailey’s Canting Dictionary [thieving slang], 1736:
A Collection of the Canting Words and Terms, both ancient and modern, used by Beggars, Gypsies, Cheats, House-Breakers, Shop-Lifters, Foot-Pads, Highway-Men, &c;
Taken from The Universal Etymological English Dictionary, by N. Bailey, London, 1737, Vol. II, and transcrib’d into XML Most Diligently by Liam Quin.
The random search that brought me there was "supernaculum'.