IOTA vs pawn

IOTA

noun
  • A bank account that earns interest and pays it to a third party, generally a charity; the principal is typically being held in escrow by the accountholder. 

pawn

noun
  • The state of being held as security for a loan, or as a pledge. 

  • A gallery. 

  • Someone who is being manipulated or used to some end. 

  • An instance of pawning something. 

  • A pawnshop; pawnbroker. 

  • The most numerous chess piece, or a similar piece in a similar game. In chess, each side starts with eight; moves are only forward, and attacks are only diagonally or en passant. 

verb
  • To give as security on a loan of money; especially, to deposit (something) at a pawn shop. 

  • To pledge; to stake or wager. 

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