atheitard vs nullifidian

atheitard

noun
  • An atheist. 

adj
  • Atheist. 

nullifidian

noun
  • A sceptic; an atheist or unbeliever. 

adj
  • Of no faith or religion; not trusting to faith for salvation. 

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