assent vs disobey

assent

verb

  • To agree to a proposal. 

noun

  • agreement; act of agreeing 

disobey

verb

  • To refuse or (intentionally) fail to obey an order of (somebody). 

  • To refuse or (intentionally) fail to obey. 

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