Dursn-t Definition

1930, William Faulkner, As I Lay Dying, p. 153

If he had been a man, he would a been there instead of making his sons do what he dursn’t.

1913, D. H. Lawrence, Sons and Lovers, p. 126

Dursn’t jump off a gate, dursn’t tweedle, dursn’t go on a slide, dursn’t stop a girl hittin’ her.