lech over vs leer

lech over

leer

verb
  • To look sideways or obliquely; now especially with sexual desire or malicious intent. 

  • To entice with a leer or leers. 

noun
  • The flank or loin. 

  • A significant side glance; a glance expressive of some passion, as malignity, amorousness, etc.; a sly or lecherous look. 

  • An arch or affected glance or cast of countenance. 

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