Definition of "jist"

'Mister Muntlehiney,' said the man. 'Wot's come on him? Is he at home?''He is above stairs, I believe,' replied Kate, a little reassured by this inquiry. 'Do you want him?''No,' replied the visitor. 'I don't ezactly want him, if it's made a favour on. You can jist give him that 'ere card, and tell him if he wants to speak to ME, and save trouble, here I am; that's all.'

1838 March – 1839 October, Charles Dickens, The Life and Adventures of Nicholas Nickleby, London: Chapman and Hall, […], published 1839

They get all their chawing by borrowing—they say to a fellow, "I wisht you'd len' me a chaw, Jack, I jist this minute give Ben Thompson the last chaw I had"—which is a lie pretty much every time;

1884 December 10, Mark Twain [pseudonym; Samuel Langhorne Clemens], chapter XXI, in The Adventures of Huckleberry Finn: (Tom Sawyer’s Comrade) […], London: Chatto & Windus, […], page 210

The world 'as got me snouted jist a treat; Crool Forchin's dirty left 'as smote me soul.

1915, C.J. Dennis, The Songs of a Sentimental Bloke, published 1916, page 13