consignment vs power of attorney

consignment

noun
  • The act of consigning. 

  • The sale of one's own goods (clothing, furniture, etc.) through a third-party vendor, in exchange for a portion of the sale price, and with the consigner retaining ownership of the goods until they are sold or abandoned. 

  • A collection of goods to be sent, in transit or having been sent. 

power of attorney

noun
  • The legal authorisation of one person to act as the agent of another. 

  • A legal document allowing one person to act as the agent of another. 

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