gradate vs weigh

gradate

verb
  • To bring to a certain strength or grade of concentration. 

  • To change imperceptibly from one gradation of tone etc. to another. 

  • To arrange in order of grades. 

weigh

verb
  • To be considered as important; to have weight in the intellectual balance. 

  • To determine the intrinsic value or merit of an object, to evaluate. 

  • To consider a subject. 

  • To have a certain weight. 

  • To bear up; to raise; to lift into the air; to swing up. 

  • To determine the weight of an object. 

  • Often with "out", to measure a certain amount of something by its weight, e.g. for sale. 

  • To have weight; to be heavy; to press down. 

  • To weigh anchor. 

  • To raise an anchor free of the seabed. 

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