chastity vs lust

chastity

noun
  • The quality of being chaste: the state of abstaining from any sexual activity considered immoral; avoidance of sexual sins. 

lust

noun
  • A feeling of strong desire, especially such a feeling driven by sexual arousal. 

verb
  • To look at or watch with a strong desire, especially of a sexual nature. 

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