cumshaw vs kick in

cumshaw

verb
  • To give or make a present to. 

noun
  • A gratuity or tip as thanks for a service 

kick in

verb
  • To contribute, especially to a collection of money. 

  • To kick or strike (a person); to beat up 

  • To kick or strike so as to cause the object struck to collapse or fall inwards. 

  • To start, connect, or take effect, especially in a sudden way. 

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