leatherize

leather +‎ -ize

leatherize (third-person singular simple present leatherizes, present participle leatherizing, simple past and past participle leatherized)

1. (transitive) To make leathery.
   • 1908, Transactions of the Sixth International Congress on Tuberculosis, volume 3, page 59:

     Treatment by the x-ray does leatherize the tissues, producing a great deal of sclerotic tissue, and in that way is favorable.

   • 1936, Collected Papers of the Mayo Clinic and the Mayo Foundation, page 466:

     I had read of some remedies that were injected into the gland to leatherize the tissue and check the over-active circulation of the gland, so I tried injecting sesquichloride of iron in a few cases.