Rich; also, having new clothes. Well equipt; full of money, or well dressed. The cull equipped me with a brace of meggs; the gentleman furnished me with a couple of guineas.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
See also the definition in Nathan Bailey's 1736 dictionary of canting and thieving slang.
Ensign Bearer * Essex LionNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes