- 07.020 and he is a skin-changer.’
- 07.022 He is a skin-changer.
The second quotation is given as one of the examples in the “skin-changer” sub-entry, but there are other, earlier ones with the hyphen, so it is not original JRRT.
“skin, n.” OED Online, Oxford University Press, June 2017, http://www.oed.com/view/Entry/180922. Accessed 21 September 2017.