entr'acte vs stopover

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. 

stopover

noun
  • A short interruption in a journey or the place visited during such an interruption. 

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