ordinarily vs rarely

ordinarily

adv
  • In the usual manner; unexceptionally. 

  • Usually or as a general rule; commonly. 

rarely

adv
  • Not occurring at a regular interval; seldom; not often. 

  • To a rare degree; very. 

  • Unusually well; excellently. 

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