funereal vs threnodial

funereal

adj
  • Similar to or befitting the mood or elements of a funeral: slow; black colors; formal; dignified or solemn. 

  • Of or relating to a funeral. 

threnodial

adj
  • Pertaining or similar to a threnody. 

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