clog vs permit

clog

verb
  • To burden; to trammel; to embarrass; to perplex. 

  • To block or slow passage through (often with 'up'). 

  • To enforce a mortgage lender right that prevents a borrower from exercising a right to redeem. 

  • To encumber or load, especially with something that impedes motion; to hamper. 

  • To perform a clog dance. 

noun
  • That which hinders or impedes motion; an encumbrance, restraint, or impediment of any kind. 

  • A type of shoe with an inflexible, often wooden sole sometimes with an open heel. 

  • A blockage. 

  • A weight, such as a log or block of wood, attached to a person or animal to hinder motion. 

  • A shoe of any type. 

permit

verb
  • To allow, to admit (of). 

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

  • To allow for, to make something possible. 

  • 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 clog and permit occurred in a corpus of books? (source: Google Ngram Viewer )