detour vs mutation

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. 

mutation

noun
  • Any alteration or change. 

  • An alteration a particular sound of a word, especially the initial consonant, which is triggered by the word's morphological or syntactic context and not by its phonological context. 

  • A group of thrushes. 

  • A mutant. 

  • Any heritable change of the base-pair sequence of genetic material. 

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