at rest vs rooted to the spot

at rest

prep
  • In a state of inactivity or repose, either physical or mental. 

  • Dead. 

  • Not moving; stationary. 

rooted to the spot

adj
  • Not moving or flinching due to surprise. 

How often have the words at rest and rooted to the spot occurred in a corpus of books? (source: Google Ngram Viewer )