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callous

/ˈkæləs/ verb

In Latin: callōsus Wiktionary

verb Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about callous at Wordnik → Where our words come from →

  1. Make insensitive or callous; deaden feelings or morals.

adjective

  1. Emotionally hardened.
    a callous indifference to suffering
  2. Having calluses; having skin made tough and thick through wear.
    calloused skin

Origin

From Latin callōsus (“hard-skinned”), from callum (“hardened skin”) + -ōsus.

From Wiktionary, via Kaikki.org (CC BY-SA)