acquiescence vs agreement

acquiescence

noun
  • Inaction, passivity, or neglect to take legal action when it is called for in order to assert, preserve, or safeguard a right, and which inaction implies the abandonment of said right. 

  • A silent or passive assent or submission, or a submission with apparent content, distinguished from avowed consent on the one hand, and on the other, from opposition or open discontent; quiet satisfaction. 

agreement

noun
  • An understanding between entities to follow a specific course of conduct. 

  • Rules that exist in many languages that force some parts of a sentence to be used or inflected differently depending on certain attributes of other parts. 

  • A legally binding contract enforceable in a court of law. 

  • A state whereby several parties share a view or opinion; the state of not contradicting one another. 

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