negatory vs reckless

negatory

adj

  • Negative, negating. 

noun

  • No. 

reckless

adj

  • Indifferent or oblivious to danger or the consequences thereof. 

  • Careless or heedless; headstrong or rash. 

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