cumshaw vs forethought

cumshaw

noun
  • A gratuity or tip as thanks for a service 

verb
  • To give or make a present to. 

forethought

noun
  • Provident care; prudence. 

  • Anticipation. 

  • Thinking beforehand or in advance, planning; prior or previous consideration; premeditation. 

adj
  • Thought of, or planned, beforehand. 

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