obviate vs permit

obviate

verb
  • To anticipate and prevent or bypass (something which would otherwise have been necessary or required). 

  • To avoid (a future problem or difficult situation). 

noun
  • Synonym of obviative 

adj
  • Synonym of obviative 

permit

verb
  • To allow for, to make something possible. 

  • To allow (something) to happen, to give permission for. 

  • To allow, to admit (of). 

  • To grant formal authorization for (something). 

  • To attempt to obtain or succeed in obtaining formal authorization for (something). 

  • To allow (someone) to do something; to give permission to. 

noun
  • A pompano of the species Trachinotus falcatus. 

  • An artifact or document rendering something allowed or legal. 

  • A learner's permit. 

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