lassitude vs weediness

lassitude

noun
  • Listlessness or languor. 

  • Lethargy or lack of energy; fatigue. 

weediness

noun
  • The quality of being weedy or feeble. 

  • The quality of resembling, or being overgrown with, weeds. 

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