bumble vs supervise

bumble

noun
  • A bumble-bee. 

  • A confusion; a jumble. 

  • The Eurasian bittern. 

verb
  • To boom, as a Eurasian bittern. 

  • To act in an inept, clumsy or inexpert manner; to make mistakes. 

  • To buzz, as a fly. 

supervise

verb
  • To oversee or direct a task or organization. 

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