lac vs thrashing

lac

noun
  • Laceration. 

  • A resinous substance or lacquer produced mainly on the banyan tree by the female of Kerria lacca, a scale insect. 

thrashing

noun
  • Slam dancing. 

  • A heavy defeat. 

  • Threshing. (of cereal crop, etc) 

  • Action of the verb to thrash. 

  • Excessive paging within virtual storage. 

  • A beating, especially a severe one. 

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