disregard vs ixnay

disregard

verb
  • To ignore; pay no attention to. 

noun
  • The act or state of deliberately not paying attention or caring about; misregard. 

ixnay

verb
  • To reject something. 

noun
  • Nothing; nix; often in the phrase "ixnay on ...", indicating something that must not be mentioned, often in Pig Latin 

intj
  • No. 

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