Green’s Dictionary of Slang

(UK Und.) money.

1859, 1860		Hotten Dict. of Modern Sl. etc.
1861		(con. 1840s–50s) H. Mayhew London Labour and London Poor I 424/1: That’s the time you get them to rights [...] by sweetening them, and then they don’t mind tipping the loaver. [...] The fortune-teller may make a week’s job of it, according as the loaver comes out.
1870		Hotten Sl. Dict.