Green’s Dictionary of Slang

(UK Und.) a bone-handled knife.

1725		New Canting Dict.
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Oschives, bone handled knives (cant).
1809		G. Andrewes Dict. Sl. and Cant.
1811		Lex. Balatronicum.
1835		G. Kent Modern Flash Dict. 24: Os chives – bone handle knives.
1848		Flash Dict. in Sinks of London Laid Open [as cit. 1835].
1859		Matsell Vocabulum 60: ochives Bone-handled knives.
1895		C. Crowe Aus. Sl. Dict. 53: Ochives, bone-handle knives.