Definition of "crackt"

If a man can prove that his upper story is crackt, he can wallop his wife to his heart's content; and if anybody interferes, he can popp him off with a six shooter, and the law will stand to his back.

1870, Various, Punchinello, Vol. 2, No. 27, October 1, 1870‎

4 He liues, (quoth he) and boasteth of the fact, Ne yet hath any knight his courage crackt. 6 Where may that treachour then (said he) be found, Or by what meanes may I his footing tract?

1590, Edmund Spenser, “(please specify the book)”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie

His wife (having invented a present shift) laughed on her husband, saying: What marchant I pray you have you brought home hither, to fetch away my tub for five pence, for which I poore woman that sit all day alone in my house have beene proffered so often seaven: her husband being well apayed of her words demanded what he was that had bought the tub: Looke (quoth she) he is gone under, to see where it be sound or no: then her lover which was under the tub, began to stirre and rustle himselfe, and because his words might agree to the words of the woman, he sayd: Dame will you have me tell the truth, this tub is rotten and crackt as me seemeth on every side.

1566, William Adlington, The Golden Asse‎