lech vs libidinosity

lech

noun
  • A strong, lecherous desire or craving. 

  • A lecher. 

  • The capstone of a cromlech. 

verb
  • To behave lecherously. 

libidinosity

noun
  • Lustful desires, characterized by lewdness; sensuality; lascivity. 

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