Relating to or based on categories or divisions that group things by shared characteristics.
From Medieval Latin categorialis, derived from Greek kategoria (predicate, accusation), from kategorein (to accuse, assert). The meaning evolved from logical classification to describe anything organized into distinct groups.
This word is the philosophical backbone of how we organize reality—Aristotle used categories as the fundamental way to describe everything that exists, and this exact principle underlies modern databases, libraries, and AI classification systems.
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