denier vs voucher

denier

noun
  • One who denies or forbids something. 

  • One who denies the existence of something. 

  • An old French coin worth one-twelfth of a sou. 

  • A unit of linear density which indicates the fineness of fiber or yarn, equal to one gram per 9000 meters, used especially to measure or indicate the fineness of hosiery. Originally equal to the weight of a denier coin per 9600 aunes. 

voucher

noun
  • One who or that which vouches. 

  • A copy of a published advertisement sent by the agency to the client as proof of publication. 

  • A receipt. 

  • A mechanical device used in shops for automatically registering the amount of money drawn. 

  • A piece of paper that entitles the holder to a discount, or that can be exchanged for goods and services. 

verb
  • To establish the authenticity of; to vouch for. 

  • To provide (a beneficiary) with a voucher. 

  • To provide a vouch for (an expenditure). 

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