bumblebee vs cockroach

bumblebee

noun
  • Any of several species of large bee in the genus Bombus 

  • A mid yellow 

cockroach

noun
  • A black or brown straight-winged insect of the order Blattodea. 

  • A Tutsi. 

  • A person from New South Wales. 

  • A person or a member of a group of people regarded as undesirable and rapidly procreating. 

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