dirge vs epitaph

dirge

noun
  • A mournful poem or piece of music composed or performed as a memorial to a dead person. 

  • A song or piece of music that is considered too slow, bland or boring. 

verb
  • To sing dirges 

epitaph

noun
  • A poem or other short text written in memory of a deceased person. 

  • An inscription on a gravestone in memory of the deceased. 

verb
  • To write or speak after the manner of an epitaph. 

  • To commemorate by an epitaph. 

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