erron. f. RACKING vbl. sb.3 (also attrib.).

1

1676.  Lond. Gaz., No. 1083/1. Certain Instruments … made use of for the wracking of Criminals.

2

1688.  R. Holme, Armoury, III. 311/1. A Wracking Plank, with a Rowling Wheel of so many Spokes.

3

1803.  W. Blake, ‘I saw a Monk,’ ii. Voltaire [arose] with a wracking wheel.

4