subs. (old cant).—A gold ring: RUM-GEM = a diamond ring.
1725. A New Canting Dictionary, s.v.
1785. GROSE, A Classical Dictionary of the Vulgar Tongue, s.v.
1811. GROSE and CLARKE, Lexicon Balatronicum, s.v.
1859. G. W. MATSELL, Vocabulum; or, The Rogue’s Lexicon, s.v.
