sha'n't

Bel[linda] […] Nay you ſha'n't go one ſtep out of the room. / […] Lady B[rute] Pray give me leave. / Lady Fanc[yfull] You know I won't. / Lady B. Indeed I muſt. / Lady Fanc. Indeed you ſha'n't. / Lady B. Indeed I will. / Lady Fanc. Indeed you ſha'n't. / Lady B. Indeed I will. / Lady Fanc. Indeed you ſha'n't. Indeed Indeed Indeed you ſha'n't. (Exit Lady Fanc. running. They follow.

1697, [John Vanbrugh], The Provok'd Wife: A Comedy, as It is Acted at the New Theatre, in Little Lincolns-Inn-Fields, London: Printed by J. O. for R. Wellington, at the Lute in St. Paul's Church Yard, and Sam. Briscoe in Covent-Garden, →OCLC, act III, page 33

That's not a threat, sir, for they have played fair with me, and I sha'n't sacrifice a penny of their money—unless they force me to do so. But—I'm in control. I'm sitting pretty. They can't unseat me, and I warn them not to try.

1922, Rex [Ellingwood] Beach, “chapter XXIV”, in Flowing Gold, New York, N.Y.: Grosset & Dunlap Publishers, by arrangement with Harper & Brothers, →OCLC, page 290