callosity

noun

Etymology: From Middle English callosite, collositee, calosite, from Anglo-Norman calosité (compare Old French chalosité), from Latin callōsitās, equivalent to callous + -ity.

1. A callus.
2. A callous demeanour; insensitivity or hardheartedness.

   “The repetition of religious duties, without the feeling or spirit of religion, produces an incurable callosity of heart.”