gift vs offertory

gift

noun
  • Something given to another voluntarily, without charge. 

  • A talent or natural ability. 

  • Something gained incidentally, without effort. 

  • The act, right, or power of giving or bestowing. 

verb
  • To give as a gift or donation. 

  • To give away, to concede easily. 

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. 

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