eo ipso vs properly

eo ipso

adv
  • Through or by that very act or quality; thereby. Compare: ipso facto. 

properly

adv
  • in a proper manner, appropriately, suitably; correctly, justifiably 

  • Entirely; extremely; thoroughly. 

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