cleanness vs restraint

cleanness

noun
  • The state of being physically clean and free of contamination or dirt; cleanliness. 

  • Moral purity; innocence. 

restraint

noun
  • something that restrains, ties, fastens or secures 

  • control or caution; reserve 

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