To remove from a sacred canon or list of accepted works, or to strip of canonical status.
From 'dis-' plus 'canonize' (to officially approve), from Greek 'kanon' (rule). The suffix '-ize' was added to the Latin-derived 'canon' root.
Libraries and scholars sometimes argue about 'discanonizing' books from literary canons—removing works from official important lists—but this formal verb is so rare that even scholars often just say 'remove from the canon.'
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