Unwrite

v. [UN-² 3.] trans. To cancel or abrogate the writing of (something); to annul or rescind (a writing).

1586.  J. Hooker, Hist. Irel., in Holinshed, II. 104/2. What he wrote he meant not to vnwrite.

1593.  B. Barnes, Poems (Grosart), 6. Since mercylesse she made that chartyre,… Sign’d with those hands which neuer can vnwrite it.

1641.  Milton, Animadv., 65. Yee write them in your closets, and unwrite them in your Courts.

1820.  Keats, in Rossetti, Life (1887), 96. My poor poem, which I would willingly take the trouble to unwrite, if possible.

1861.  Court Life at Naples, II. 269. It is easier to unsay than to unwrite cross words.

1888.  Gladstone, in Daily News, 6 Nov., 6/3. You cannot unwrite or rewrite the law of time.