The quality or state of having an intense desire to hurt people or see violence; extreme cruelty.
From 'bloodthirsty' plus the noun-forming suffix '-ness,' which converts adjectives into abstract nouns. This suffix combination emerged by the 16th century to describe the quality itself rather than individual acts.
The '-ness' suffix is English's favorite tool for turning qualities into countable concepts—we can discuss 'bloodthirstiness' as a characteristic in people the way we discuss 'kindness,' revealing how language lets us treat violent urges as measurable traits.
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