cornify

corn +‎ -ify, from Latin cornu (“horn”)

• (UK) IPA^(key): /ˈkɔː.nɪ.faɪ/
• (US) IPA^(key): /ˈkɔɹ.nɪ.faɪ/

cornify (third-person singular simple present cornifies, present participle cornifying, simple past and past participle cornified)

1. (chiefly medicine) To convert or be converted into horn or a similar substance
   • 1985, Moschella & Hurley, Dermatology‎, volume 1, 2nd ed. edition, page 51:

     No longer in contact with an inner root sheath, the isthmus epithelium cornifies without a granular zone, and the thin cornified layer is composed of compactly arranged cornified cells.

• cornification