centuplet vs erf

centuplet

noun
  • One of a group of 100, particularly one of 100 babies born at the same time, from the same egg, or from the same DNA. 

  • Synonym of hundred: A group of 100. 

erf

noun
  • Inheritance; patrimony. 

  • Stock; cattle. 

  • A small inherited house-and-garden lot in a village or settlement. 

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