document vs set down

document

verb
  • To record in documents. 

  • To furnish with documents or papers necessary to establish facts or give information. 

noun
  • An object conveying information by whatever means, capable of being indexed alongside other similar objects. 

  • An original or official paper used as the basis, proof, or support of anything else, including any writing, book, or other instrument conveying information pertinent to such proof or support. 

  • Any material substance on which the information is represented by writing. 

  • A file that contains text. 

set down

verb
  • To write. 

  • To fix; to establish; to ordain. 

  • To place, especially on the ground or a surface; to cease carrying; to deposit; to allow passengers to alight. 

  • To land. 

How often have the words document and set down occurred in a corpus of books? (source: Google Ngram Viewer )