cruel

The word 'cruel' has a visceral origin, tracing back to the Latin adjective 'crudelis', meaning unfeeling or severe. This, in turn, is derived from 'crudus', which literally meant raw, bloody, or rough—qualities associated with untreated flesh or violent injury. The semantic evolution moved from the physical state of being raw and bloody to the metaphorical sense of having a raw, unrefined, or harsh nature devoid of compassion. Thus, the modern abstract meaning of delighting in or being indifferent to the suffering of others retains the core idea of harshness and brutality inherent in its ancient root.

The word 'cruel' is a simplex form. It entered English as a single lexical unit from Old French 'cruel', which derived from Latin 'crudelis' (hard-hearted, severe, unfeeling). The Latin root is 'crudus', meaning raw, bloody, rough.