layer vs ratoon

layer

noun
  • A shoot of a plant, laid underground for growth. 

  • One of the items in a hierarchy. 

  • A person who lays anything, such as tiles or a wager. 

  • A (usually) horizontal deposit; a stratum. 

  • An item of clothing worn under or over another. 

  • A single thickness of some material covering a surface. 

  • A mature female bird, insect, etc. that is able to lay eggs. 

  • A hen kept to lay eggs. 

  • one in a stack of (initially transparent) drawing surfaces that comprise an image; used to keep elements of an image separate so that they can be modified independently from one another. 

verb
  • To arrange in layers. 

  • To cut or divide into layers. 

ratoon

noun
  • A shoot sprouting from the root of a cropped plant, especially sugar cane. 

  • A rattan cane. 

verb
  • To sprout ratoons. 

  • To cut a plant, especially sugar cane, so that it will produce ratoons. 

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