preemie vs tot

preemie

noun
  • A baby that has been born prematurely 

tot

noun
  • A small child. 

  • A small cup, usually made of tin. 

  • A measure of spirits, especially rum. 

  • A total, an addition of a long column of figures. 

verb
  • To sum or total. 

  • To mark (a debt) with the word tot (Latin for "so much"), indicating that it was good or collectible for the amount specified. 

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