unhair

From un- +‎ hair.

unhair (third-person singular simple present unhairs, present participle unhairing, simple past and past participle unhaired)

1. (transitive) To remove hair from (something), especially from hide.
   • 1889, Annual report of the Bureau of Animal Industry - Volume 4, Parts 1887-1888, page 425:

     The sides, after being unhaired, are put in clean water over night, then green-shaved and put in a bate of hen manure four or five days.

   • 1924, Tanners' Council of America. Research Laboratory, University of Cincinnati, Reports and Papers, volume 2, page 520:

     They found that such a practice produced what was termed a "mellow" lime; the mellower the lime the more rapidly it unhaired the skin.

2. (intransitive) To become free from hair.
   • 1927, The Journal of the American Leather Chemists Association, page 361:

     If the skin is soaked in an amine solution before being placed in the lime it unhairs at a faster rate, however, than if soaked in plain water, as shown in Table VII.