doxology vs hymn

doxology

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

hymn

noun
  • A song of praise or worship, especially a religious one. 

verb
  • To praise or extol in hymns. 

  • To sing a hymn. 

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