cumshaw vs offering

cumshaw

noun
  • A gratuity or tip as thanks for a service 

verb
  • To give or make a present to. 

offering

noun
  • A contribution given at a religious service. 

  • Something put forth, bid, proffered or tendered, such as for sale 

  • That which has been offered; a sacrifice. 

  • The act by which something is offered. 

  • An oblation or presentation made as a religious act. 

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