felt-tip vs set down

felt-tip

verb
  • To write with a felt-tip pen. 

noun
  • A felt-tip pen. 

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 felt-tip and set down occurred in a corpus of books? (source: Google Ngram Viewer )