demand vs levy

demand

verb
  • To issue a summons to court. 

  • To require of someone. 

  • To claim a right to something. 

  • To ask forcefully for information. 

  • To request forcefully. 

noun
  • An urgent request. 

  • The desire to purchase goods and services. 

  • An order. 

  • The amount of a good or service that consumers are willing to buy at a particular price. 

  • A forceful claim for something. 

  • A requirement. 

  • More precisely peak demand or peak load, a measure of the maximum power load of a utility's customer over a short period of time; the power load integrated over a specified time interval. 

levy

verb
  • To impose (a tax or fine) to collect monies due, or to confiscate property. 

  • To raise, as a siege. 

  • To raise or collect by assessment; to exact by authority. 

  • To erect, build, or set up; to make or construct; to raise or cast up. 

  • To draft someone into military service. 

  • To raise; to collect; said of troops, to form into an army by enrollment, conscription. etc. 

  • To wage war. 

noun
  • The tax, property or people so levied. 

  • The act of levying. 

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