groaning vs sorrowful

groaning

adj
  • That groans. 

  • Heavily laden, as if to creak under the strain. 

noun
  • A low sound associated with extended suffering, sorrow, and toil. 

sorrowful

adj
  • exhibiting sorrow; dejected; distraught; sad. 

  • Producing sorrow; causing grief. 

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