chaste vs straightedge

chaste

adj
  • Abstaining from immoral or unlawful sexual intercourse. 

  • Decent, modest, morally pure. 

  • Virginal, innocent, having had no sexual experience. 

  • Austere, simple, undecorative. 

straightedge

adj
  • Living one's life opposing or eschewing the use of substances such as alcohol, tobacco, and drugs. 

noun
  • A flat, rectangular tool used to draw, cut or check the straightness of straight lines. 

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