lettuce vs shilling

lettuce

noun
  • United States paper currency; dollars. 

  • long hair, as worn by an exemplar of bro culture 

  • The leaves of the lettuce plant, eaten as a vegetable; as a dish often mixed with other ingredients, dressing etc. 

  • A strong yellow-green colour, like that of lettuce (also called lettuce green). 

  • An edible plant, Lactuca sativa and its close relatives, having a head of green and/or purple leaves. 

  • weed or marijuana 

shilling

noun
  • A currency in the United States, differing in value between states. 

  • A coin formerly used in the United Kingdom, Ireland, Malta, Australia, New Zealand and many other Commonwealth countries worth twelve old pence, or one twentieth of a pound sterling. 

  • The currency of Kenya, Somalia, Tanzania and Uganda. 

  • The Spanish real, formerly having the value of one eighth of a dollar. 

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