detour vs right-about

detour

noun
  • A diversion or deviation from one's original route. 

  • The diversion of the flow of execution for debugging or similar purposes. 

verb
  • To make a detour. 

  • To direct or send on a detour. 

right-about

noun
  • A 180-degree turn towards the right (especially of troops) 

How often have the words detour and right-about occurred in a corpus of books? (source: Google Ngram Viewer )