offertory vs premium

offertory

noun
  • The part of the Eucharist service when offerings of bread and wine are placed on the altar and when any collection is taken; also, the money or other things collected. 

  • A linen or silken cloth anciently used in various ceremonies connected with the administration of the Eucharist. 

  • A prayer said or sung as an anthem while offerings of bread and wine are placed on the altar during the Roman Catholic Mass or the Anglican Communion service. 

premium

noun
  • A prize or award. 

  • A bonus paid in addition to normal payments. 

  • The amount to be paid for an insurance policy. 

  • Something offered at a reduced price as an inducement to buy something else. 

  • An unusually high value. 

  • The amount by which a security's value exceeds its face value. 

adj
  • High-end; belonging to the market segment between mid-market and luxury. 

  • Superior in quality; higher in price or value. 

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