entr'acte vs postponement

entr'acte

noun
  • An interval between two acts of a play or opera. 

  • Another performance, such as a piece of music or a dance, during this. 

postponement

noun
  • A delay, as a formal delay in a proceeding. 

How often have the words entr'acte and postponement occurred in a corpus of books? (source: Google Ngram Viewer )