Green’s Dictionary of Slang

an aristocrat.

1837		T. Carlyle Diamond Necklace 2/2: It all began to seem Romantic, and your Turpins and Aristos found music in it.
1869		‘Six Years in Prisons of England’ in Temple Bar Mag. Jan. 217: This man was not ranked among the ‘aristoes’ in prison society.
1885		‘’Arry on the Merry Month of May’ Punch 16 May 229/1: That’s why the Haristos and ’Arry [...] Likes passing the Season in London.
1890		‘’Arry on [...] the Glorious Twelfth’ Punch 30 Aug. 97/2: He is down on the Aristos, Charlie.
1917		G. Bowerman diary 16 Oct. in Carnes Compensations of War (1983) 36: Did one of the hated ‘aristos’ crouch in terror in one of these dark corners.
1959		A. Sinclair My Friend Judas (1963) 153: Johnny was a baby-faced Etonian aristo.
1959		D. Niland Gold in the Streets (1966) 204: We go like aristo-something, all posh tog.
1965		L. Haylen Big Red 168: ‘It’s the revolution,’ shouted Red. ‘The sans-culottes and the aristos all in together.’.
1975		‘P.B. Yuill’ Hazell and the Three-card Trick (1977) 193: Maybe it was just your aristo’s natural gallantry.
1989		T. Blacker Fixx 7: A charming, slack-jawed aristo whose name I forget.
1999		Indep. Rev. 10 Sept. 22: Versailles is populated by thick aristos with ludicrously high coiffures.
2000		M. Manning Get Your Cock Out 41: Mincey had copped a few degenerate aristo’s works before, shared them before all this AIDS shit.
2010		K. Richards Life 202: This weird mixture of aristos and gangsters.