generally vs ofttimes

generally

adv
  • Popularly or widely. 

  • As a rule; usually. 

  • Without reference to specific details. 

  • In the general case, without exception. 

ofttimes

adv
  • (elsewhere, archaic) often, frequently 

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