pelmanism vs remembrance

pelmanism

noun
  • A system of training to improve the memory. 

  • A memory card game in which a pack of cards is spread out face-down and players try to turn up pairs with the same symbol. 

remembrance

noun
  • The power of remembering; the reach of personal knowledge; the period over which one's memory extends. 

  • The act of remembering; a holding in mind, or bringing to mind; recollection. 

  • Something remembered; a person or thing kept in memory. 

  • That which serves to keep in or bring to mind; a memento, a memorial, a souvenir, a token; a memorandum or note of something to be remembered. 

  • The state of being remembered, or held in mind; memory, recollection. 

verb
  • To remember; to recall to mind. 

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