obituary vs obsequies

obituary

noun
  • A register of deaths in a monastery. 

  • A biography of a recently deceased person, written by a journalist and published in a newspaper. 

  • A brief notice of a person’s death, as published in a newspaper. 

adj
  • Relating to the death of a person. 

obsequies

noun
  • Funeral rites. 

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