casuistic vs ethical

casuistic

adj
  • Overly subtle, hair-splitting. 

  • Relating to casuistry (attempts to solve moral dilemmas by applying general rules). 

ethical

noun
  • An ethical drug, one only dispensed on the prescription of a physician. 

adj
  • Of or relating to the study of ethics. 

  • Morally approvable; good. 

  • Of or relating to the accepted principles of right and wrong, especially those of some organization or profession. 

  • Only dispensed on the prescription of a physician. 

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