carol vs picnic

carol

verb
  • To participate in a carol (a round dance accompanied by singing). 

  • To sing carols; especially to sing Christmas carols in a group. 

  • To praise or celebrate in song. 

  • To sing in a joyful manner. 

  • To sing (a song) cheerfully. 

noun
  • A (usually traditional) religious or secular song sung at Christmastime. 

  • A round dance accompanied by singing. 

  • A ballad or song of joy. 

picnic

verb
  • To take part in a picnic. 

noun
  • An easy or pleasant task. 

  • An informal social gathering, usually in a natural outdoor setting, to which the participants bring their own food and drink. 

  • The meal eaten at such a gathering. 

  • A cut of pork from the shoulder area (above the front leg) of a pig. 

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