frolic vs roister

frolic

verb
  • To make merry; to have fun; to romp; to behave playfully and uninhibitedly. 

noun
  • Gaiety; merriment. 

  • A playful antic. 

roister

verb
  • To engage in noisy, drunken, or riotous behaviour. 

  • To walk with a swaying motion. 

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