allow vs prescribe

allow

verb
  • To grant license to; to permit; to consent to. 

  • To not bar or obstruct. 

  • To render physically possible. 

  • To grant, give, admit, accord, afford, or yield; to let one have. 

  • To acknowledge; to accept as true; to concede; to accede to an opinion. 

  • To grant (something) as a deduction or an addition; especially to abate or deduct. 

  • To take into account by making an allowance. 

  • To decide (a request) in favour of the party who raised it; to grant victory to a party regarding (a request). 

prescribe

verb
  • To develop or assert a right; to make a claim (by prescription). 

  • To order (a drug or medical device) for use by a particular patient (under licensed authority). 

  • To specify by writing as a required procedure or ritual; to lay down authoritatively as a guide, direction, or rule of action. 

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