presently vs previously

presently

adv
  • Before long; soon. 

  • At present; now; currently. 

  • Immediately, at once; quickly. 

previously

adv
  • At an earlier time. 

  • Recapitulating the preceding episodes of a series. 

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