offering vs sweetener

offering

noun
  • Something put forth, bid, proffered or tendered, such as for sale 

  • That which has been offered; a sacrifice. 

  • The act by which something is offered. 

  • A contribution given at a religious service. 

  • An oblation or presentation made as a religious act. 

sweetener

noun
  • A shill bidder at an auction. 

  • Something added to food to sweeten its taste, especially an artificial substitute for sugar. 

  • Something given or added to added to a deal to sweeten another's attitude, especially a bribe or kickback. 

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