elegiac vs mirthless

elegiac

adj
  • Expressing sorrow or mourning. 

  • Of or relating to an elegy. 

noun
  • A poem composed in the couplet style of classical elegies: a line of dactylic hexameter followed by a line of dactylic pentameter. 

mirthless

adj
  • Lacking mirth; devoid of joy; sad 

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