await vs sit up for

await

verb
  • To expect. 

  • To wait; to stay in waiting. 

  • To serve or attend; to wait on, wait upon. 

  • To watch, observe. 

  • To wait for. 

  • To be in store for; to be ready or in waiting for. 

sit up for

How often have the words await and sit up for occurred in a corpus of books? (source: Google Ngram Viewer )