laxity vs self-congratulation

laxity

noun
  • The state of being lax; looseness, lack of tension. 

  • Moral looseness; lack of rigorousness or strictness. 

self-congratulation

noun
  • self-satisfied congratulation of oneself for one's achievements or situation 

How often have the words laxity and self-congratulation occurred in a corpus of books? (source: Google Ngram Viewer )