make ineffective vs negate

make ineffective

negate

verb
  • To perform the NOT operation on. 

  • To be negative; bring or cause negative results. 

  • To deny the existence, evidence, or truth of; to contradict. 

  • To nullify or cause to be ineffective. 

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