assent vs stickle

assent

noun
  • agreement; act of agreeing 

verb
  • To agree to a proposal. 

stickle

noun
  • A sharp point; prickle; a spine 

  • A shallow rapid in a river. 

  • The current below a waterfall. 

verb
  • To raise objections; to argue stubbornly, especially over minor or trivial matters. 

adj
  • steep; high; inaccessible 

  • high, as the water of a river; swollen; sweeping; rapid 

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