DictionaryRoot: kanōn
Greek
kanōn
rule; standard
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adjective
canonical
kuh-NON-ih-kul/kəˈnɑːnɪkl/
Recognized as authoritative or standard within an established system.
Etymology
Built on the idea of a rule or standard, canonical first meant conforming to church law. It broadened to conformity with a rule and membership in an accepted, authoritative body of works.