cumshaw vs guerdon

cumshaw

verb
  • To give or make a present to. 

noun
  • A gratuity or tip as thanks for a service 

guerdon

verb
  • To give such a reward to. 

noun
  • A reward, prize or recompense for a service; an accolade. 

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