offertory vs ration

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. 

ration

noun
  • A portion of some limited resource allocated to a person or group. 

verb
  • To supply with a ration; to limit (someone) to a specific allowance of something. 

  • To restrict (an activity etc.) 

  • To portion out (especially during a shortage of supply); to limit access to. 

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