Divine Office vs synopsis

Divine Office

noun
  • Synonym of Liturgy of the Hours 

synopsis

noun
  • A prayer book for use by the laity of the church. 

  • A brief summary of the major points of a written work, either as prose or as a table; an abridgment or condensation of a work. 

  • A reference work containing brief articles that taken together give an overview of an entire field. 

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