cloudberry vs lac

cloudberry

noun
  • A species of slow-growing bramble, Rubus chamaemorus. 

  • The fruit of these plants. 

lac

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

  • Laceration. 

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