doxology vs miserere

doxology

noun
  • An expression of praise to God, especially a short hymn sung as part of a Christian worship service. 

miserere

noun
  • An expression of lamentation or complaint. 

  • A small projecting boss or bracket on the underside of the hinged seat of a church stall, intended to give some support to a standing worshipper when the seat is turned up; a misericord. 

  • Ileus. 

  • A medieval dagger, used for the mercy stroke to a wounded foe; misericord. 

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