feebleness vs valetudinarianism

feebleness

noun
  • The quality or state of being feeble; debility; infirmity. 

valetudinarianism

noun
  • The state, condition or habits of a valetudinarian; a state of feeble health; infirmity. 

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