antipodal vs confirming

antipodal

noun
  • One of the cells at the chalazal pole of an embryo sac. 

adj
  • On opposite sides of the globe; pertaining to antipodes 

  • diametrically opposite 

confirming

noun
  • An act of confirmation. 

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