An archaic or obsolete form meaning to collate; to compare or arrange texts or documents in order.
From Latin 'collatus' (past participle of 'conferre', to bring together). This shortened form is archaic, with 'collate' becoming the standard English form.
Medieval monks created the term 'collate' because that's literally what they did—they collected pages of manuscripts, compared them to find errors, and arranged them in order, which is why we still call comparing documents 'collation' today.
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