laxity vs slushiness

laxity

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

  • Moral looseness; lack of rigorousness or strictness. 

slushiness

noun
  • The state or quality of being slushy. 

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