Cruelty

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Middle English: from Old French crualte, based on Latin crudelitas, from crudelis (see cruel).

wiktionary

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From Middle English cruelte, from Old French crualté (French cruauté), from Latin crudelitas. Surface analysis: cruel +‎ -ty.

etymonline

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cruelty (n.)

c. 1200, cruelte, "indifference to, or pleasure taken in, the distress or suffering of any sentient being," from Old French crualté (12c., Modern French cruauté), from Latin crudelitatem (nominative crudelitas) "cruelty," from crudelis "rude, unfeeling; cruel, hard-hearted," related to crudus "rough, raw, bloody" (see crude). Meaning "a cruel act" is from late 14c.