Green’s Dictionary of Slang

chury n.

a knife.

1812		Vaux Vocab. of the Flash Lang.
1818		W. Scott Heart of Mid-Lothian (1883) 307: I have not forgot that you planked a chury, which helped me through the bars of the Castle of York.
1822		(con. early 17C) W. Scott Fortunes of Nigel II 131: Chalk him across the peepers with your cheery.
1871–82		B.M. Carew Life and Adventures.
1906		A. McCormick Tinkler-Gypsies of Galloway 105: We have it from no less authority than Mr Groome that there is only one word of real Romany amongst all the cant words used in Sir Walter Scott’s works. He says: – ‘Whence, by the bye, did Scott get chury, the only true Romany word in all his works?’ It occurs [...] in The Heart of Midlothian and The Fortunes of Nigel.