canonize vs psalmody

canonize

verb
  • To regard as a saint; to glorify, to exalt to the highest honour. 

  • To declare (a deceased person) as a saint, and enter them into the canon of saints. 

  • To regard (an artistic or written work or its creator) as one of a group that are representative of a particular field. 

  • Especially of a church: to give official approval to; to authorize, to sanction. 

  • To formally declare (a piece of religious writing) to be part of the biblical canon. 

psalmody

verb
  • To celebrate in psalms. 

noun
  • A collection of psalms. 

  • The singing or the writing of psalms. 

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